1201210121022 has 32 divisors (see below), whose sum is σ = 2467486530432. Its totient is φ = 389560185504.

The previous prime is 1201210120997. The next prime is 1201210121063. The reversal of 1201210121022 is 2201210121021.

It is a junction number, because it is equal to n+sod(n) for n = 1201210120992 and 1201210121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4168033 + ... + 4446899.

It is an arithmetic number, because the mean of its divisors is an integer number (77108954076).

Almost surely, 2^{1201210121022} is an apocalyptic number.

1201210121022 is an abundant number, since it is smaller than the sum of its proper divisors (1266276409410).

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

1201210121022 is a wasteful number, since it uses less digits than its factorization.

1201210121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298312.

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

Adding to 1201210121022 its reverse (2201210121021), we get a palindrome (3402420242043).

Subtracting 1201210121022 from its reverse (2201210121021), we obtain a palindrome (999999999999).

The spelling of 1201210121022 in words is "one trillion, two hundred one billion, two hundred ten million, one hundred twenty-one thousand, twenty-two".