121101121021210 has 64 divisors (see below), whose sum is σ = 240158317824000. Its totient is φ = 43599799296000.

The previous prime is 121101121021207. The next prime is 121101121021261. The reversal of 121101121021210 is 12120121101121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 669720391 + ... + 669901189.

It is an arithmetic number, because the mean of its divisors is an integer number (3752473716000).

Almost surely, 2^{121101121021210} is an apocalyptic number.

121101121021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121101121021210 is a deficient number, since it is larger than the sum of its proper divisors (119057196802790).

121101121021210 is a wasteful number, since it uses less digits than its factorization.

121101121021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241207.

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

Adding to 121101121021210 its reverse (12120121101121), we get a palindrome (133221242122331).

The spelling of 121101121021210 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twenty-one million, twenty-one thousand, two hundred ten".