121222122100122 has 16 divisors (see below), whose sum is σ = 242445799495872. Its totient is φ = 40407114817440.

The previous prime is 121222122100109. The next prime is 121222122100153. The reversal of 121222122100122 is 221001221222121.

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, 63789523 + ... + 65662374.

It is an arithmetic number, because the mean of its divisors is an integer number (15152862468492).

Almost surely, 2^{121222122100122} is an apocalyptic number.

121222122100122 is an abundant number, since it is smaller than the sum of its proper divisors (121223677395750).

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

121222122100122 is a wasteful number, since it uses less digits than its factorization.

121222122100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129607973.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121222122100122 its reverse (221001221222121), we get a palindrome (342223343322243).

The spelling of 121222122100122 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-two".