121020010100210 has 128 divisors (see below), whose sum is σ = 238293763868160. Its totient is φ = 43981504358400.

The previous prime is 121020010100183. The next prime is 121020010100239. The reversal of 121020010100210 is 12001010020121.

It is a junction number, because it is equal to n+sod(n) for n = 121020010100191 and 121020010100200.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15735272465 + ... + 15735280155.

It is an arithmetic number, because the mean of its divisors is an integer number (1861670030220).

Almost surely, 2^{121020010100210} is an apocalyptic number.

121020010100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020010100210 is a deficient number, since it is larger than the sum of its proper divisors (117273753767950).

121020010100210 is a wasteful number, since it uses less digits than its factorization.

121020010100210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121020010100210 its reverse (12001010020121), we get a palindrome (133021020120331).

The spelling of 121020010100210 in words is "one hundred twenty-one trillion, twenty billion, ten million, one hundred thousand, two hundred ten".