121021112210 has 32 divisors (see below), whose sum is σ = 223036545600. Its totient is φ = 47254552128.

The previous prime is 121021112203. The next prime is 121021112249. The reversal of 121021112210 is 12211120121.

It is a super-2 number, since 2×121021112210² (a number of 23 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, 647744 + ... + 813396.

It is an arithmetic number, because the mean of its divisors is an integer number (6969892050).

Almost surely, 2^121021112210 is an apocalyptic number.

121021112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021112210 is a deficient number, since it is larger than the sum of its proper divisors (102015433390).

121021112210 is a wasteful number, since it uses less digits than its factorization.

121021112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167402.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121021112210 its reverse (12211120121), we get a palindrome (133232232331).

The spelling of 121021112210 in words is "one hundred twenty-one billion, twenty-one million, one hundred twelve thousand, two hundred ten".