1220112002122 has 16 divisors (see below), whose sum is σ = 1975865261832. Its totient is φ = 561724300800.

The previous prime is 1220112002101. The next prime is 1220112002129. The reversal of 1220112002122 is 2212002110221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1215327651561 + 4784350561 = 1102419^2 + 69169^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220112002096 and 1220112002105.

It is not an unprimeable number, because it can be changed into a prime (1220112002129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58502523 + ... + 58523374.

Almost surely, 2^{1220112002122} is an apocalyptic number.

1220112002122 is a deficient number, since it is larger than the sum of its proper divisors (755753259710).

1220112002122 is a wasteful number, since it uses less digits than its factorization.

1220112002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117026313.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220112002122 its reverse (2212002110221), we get a palindrome (3432114112343).

The spelling of 1220112002122 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two thousand, one hundred twenty-two".