121220122101002 has 16 divisors (see below), whose sum is σ = 192526702352712. Its totient is φ = 57044577838080.

The previous prime is 121220122100983. The next prime is 121220122101109. The reversal of 121220122101002 is 200101221022121.

It can be written as a sum of positive squares in 4 ways, for example, as 118741100191921 + 2479021909081 = 10896839^2 + 1574491^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5109602 + ... + 16387442.

Almost surely, 2^{121220122101002} is an apocalyptic number.

121220122101002 is a deficient number, since it is larger than the sum of its proper divisors (71306580251710).

121220122101002 is a wasteful number, since it uses less digits than its factorization.

121220122101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11593993.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121220122101002 its reverse (200101221022121), we get a palindrome (321321343123123).

The spelling of 121220122101002 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty-two million, one hundred one thousand, two".