121001211220010 has 32 divisors (see below), whose sum is σ = 237606042207744. Its totient is φ = 43999761960000.

The previous prime is 121001211219989. The next prime is 121001211220091. The reversal of 121001211220010 is 10022112100121.

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, 1287386 + ... + 15609605.

It is an arithmetic number, because the mean of its divisors is an integer number (7425188818992).

Almost surely, 2^{121001211220010} is an apocalyptic number.

121001211220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001211220010 is a deficient number, since it is larger than the sum of its proper divisors (116604830987734).

121001211220010 is a wasteful number, since it uses less digits than its factorization.

121001211220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16962110.

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

Adding to 121001211220010 its reverse (10022112100121), we get a palindrome (131023323320131).

The spelling of 121001211220010 in words is "one hundred twenty-one trillion, one billion, two hundred eleven million, two hundred twenty thousand, ten".