121021221011210 has 32 divisors (see below), whose sum is σ = 234678677224320. Its totient is φ = 44668816630848.

The previous prime is 121021221011203. The next prime is 121021221011237. The reversal of 121021221011210 is 12110122120121.

It is a super-2 number, since 2×121021221011210² (a number of 29 digits) contains 22 as substring.

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, 165695630 + ... + 166424409.

It is an arithmetic number, because the mean of its divisors is an integer number (7333708663260).

Almost surely, 2^{121021221011210} is an apocalyptic number.

121021221011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021221011210 is a deficient number, since it is larger than the sum of its proper divisors (113657456213110).

121021221011210 is a wasteful number, since it uses less digits than its factorization.

121021221011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332122862.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121021221011210 its reverse (12110122120121), we get a palindrome (133131343131331).

The spelling of 121021221011210 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty-one million, eleven thousand, two hundred ten".