121131220011010 has 32 divisors (see below), whose sum is σ = 240212694826944. Its totient is φ = 43611600360000.

The previous prime is 121131220010993. The next prime is 121131220011071. The reversal of 121131220011010 is 10110022131121.

It is a happy number.

It is a super-2 number, since 2×121131220011010² (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, 5451438936 + ... + 5451461155.

It is an arithmetic number, because the mean of its divisors is an integer number (7506646713342).

Almost surely, 2^{121131220011010} is an apocalyptic number.

121131220011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121131220011010 is a deficient number, since it is larger than the sum of its proper divisors (119081474815934).

121131220011010 is a wasteful number, since it uses less digits than its factorization.

121131220011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10902900210.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121131220011010 its reverse (10110022131121), we get a palindrome (131241242142131).

The spelling of 121131220011010 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, two hundred twenty million, eleven thousand, ten".