121231102211210 has 16 divisors (see below), whose sum is σ = 222858877257216. Its totient is φ = 47460686822928.

The previous prime is 121231102211147. The next prime is 121231102211227. The reversal of 121231102211210 is 12112201132121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128969257202 + ... + 128969258141.

It is an arithmetic number, because the mean of its divisors is an integer number (13928679828576).

Almost surely, 2^{121231102211210} is an apocalyptic number.

121231102211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121231102211210 is a deficient number, since it is larger than the sum of its proper divisors (101627775046006).

121231102211210 is a wasteful number, since it uses less digits than its factorization.

121231102211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257938515397.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121231102211210 its reverse (12112201132121), we get a palindrome (133343303343331).

The spelling of 121231102211210 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, one hundred two million, two hundred eleven thousand, two hundred ten".