121012102200210 has 256 divisors, whose sum is σ = 322129687283712. Its totient is φ = 28904391475200.

The previous prime is 121012102200097. The next prime is 121012102200221. The reversal of 121012102200210 is 12002201210121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121012102200210.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2569617424 + ... + 2569664516.

It is an arithmetic number, because the mean of its divisors is an integer number (1258319090952).

Almost surely, 2^{121012102200210} is an apocalyptic number.

121012102200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121012102200210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161064843641856).

121012102200210 is an abundant number, since it is smaller than the sum of its proper divisors (201117585083502).

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

121012102200210 is a wasteful number, since it uses less digits than its factorization.

121012102200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48021.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121012102200210 its reverse (12002201210121), we get a palindrome (133014303410331).

The spelling of 121012102200210 in words is "one hundred twenty-one trillion, twelve billion, one hundred two million, two hundred thousand, two hundred ten".