102010012121121 has 16 divisors (see below), whose sum is σ = 147004708772544. Its totient is φ = 62548766103744.

The previous prime is 102010012121093. The next prime is 102010012121131. The reversal of 102010012121121 is 121121210010201.

It is a happy number.

It is not a de Polignac number, because 102010012121121 - 2⁶ = 102010012121057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102010012121121.

It is not an unprimeable number, because it can be changed into a prime (102010012121131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4721363451 + ... + 4721385056.

It is an arithmetic number, because the mean of its divisors is an integer number (9187794298284).

Almost surely, 2^{102010012121121} is an apocalyptic number.

It is an amenable number.

102010012121121 is a deficient number, since it is larger than the sum of its proper divisors (44994696651423).

102010012121121 is a wasteful number, since it uses less digits than its factorization.

102010012121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442748800.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102010012121121 its reverse (121121210010201), we get a palindrome (223131222131322).

The spelling of 102010012121121 in words is "one hundred two trillion, ten billion, twelve million, one hundred twenty-one thousand, one hundred twenty-one".