121201121022 has 16 divisors (see below), whose sum is σ = 242421154560. Its totient is φ = 40397221592.

The previous prime is 121201120987. The next prime is 121201121033. The reversal of 121201121022 is 220121102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201120992 and 121201121010.

It is a congruent number.

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, 704022 + ... + 859097.

It is an arithmetic number, because the mean of its divisors is an integer number (15151322160).

Almost surely, 2^121201121022 is an apocalyptic number.

121201121022 is an abundant number, since it is smaller than the sum of its proper divisors (121220033538).

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

121201121022 is a wasteful number, since it uses less digits than its factorization.

121201121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576047.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121201121022 its reverse (220121102121), we get a palindrome (341322223143).

The spelling of 121201121022 in words is "one hundred twenty-one billion, two hundred one million, one hundred twenty-one thousand, twenty-two".