121122021202002 has 24 divisors (see below), whose sum is σ = 276243206250960. Its totient is φ = 38249059326840.

The previous prime is 121122021201991. The next prime is 121122021202009. The reversal of 121122021202002 is 200202120221121.

It is a happy number.

121122021202002 is a `hidden beast` number, since 1 + 211 + 220 + 212 + 0 + 20 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121122021202009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177078978024 + ... + 177078978707.

It is an arithmetic number, because the mean of its divisors is an integer number (11510133593790).

Almost surely, 2^{121122021202002} is an apocalyptic number.

121122021202002 is an abundant number, since it is smaller than the sum of its proper divisors (155121185048958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121122021202002 is a wasteful number, since it uses less digits than its factorization.

121122021202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354157956758 (or 354157956755 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121122021202002 its reverse (200202120221121), we get a palindrome (321324141423123).

The spelling of 121122021202002 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twenty-one million, two hundred two thousand, two".