121012201222010 has 64 divisors (see below), whose sum is σ = 256584026571264. Its totient is φ = 40234950201600.

The previous prime is 121012201221953. The next prime is 121012201222021. The reversal of 121012201222010 is 10222102210121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121012201222010.

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, 199274957 + ... + 199881296.

It is an arithmetic number, because the mean of its divisors is an integer number (4009125415176).

Almost surely, 2^{121012201222010} is an apocalyptic number.

121012201222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012201222010 is an abundant number, since it is smaller than the sum of its proper divisors (135571825349254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121012201222010 is a wasteful number, since it uses less digits than its factorization.

121012201222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399156399.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121012201222010 its reverse (10222102210121), we get a palindrome (131234303432131).

The spelling of 121012201222010 in words is "one hundred twenty-one trillion, twelve billion, two hundred one million, two hundred twenty-two thousand, ten".