120001021122 has 32 divisors (see below), whose sum is σ = 242487717120. Its totient is φ = 39586419200.

The previous prime is 120001021121. The next prime is 120001021171. The reversal of 120001021122 is 221120100021.

It is a junction number, because it is equal to n+sod(n) for n = 120001021098 and 120001021107.

It is not an unprimeable number, because it can be changed into a prime (120001021121) 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, 1333879 + ... + 1420997.

It is an arithmetic number, because the mean of its divisors is an integer number (7577741160).

Almost surely, 2^120001021122 is an apocalyptic number.

120001021122 is an abundant number, since it is smaller than the sum of its proper divisors (122486695998).

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

120001021122 is a wasteful number, since it uses less digits than its factorization.

120001021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89498.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120001021122 its reverse (221120100021), we get a palindrome (341121121143).

The spelling of 120001021122 in words is "one hundred twenty billion, one million, twenty-one thousand, one hundred twenty-two".