121111202000010 has 32 divisors (see below), whose sum is σ = 298522746554112. Its totient is φ = 31423447005120.

The previous prime is 121111201999979. The next prime is 121111202000011. The reversal of 121111202000010 is 10000202111121.

It is a self number, because there is not a number n which added to its sum of digits gives 121111202000010.

It is not an unprimeable number, because it can be changed into a prime (121111202000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54554594386 + ... + 54554596605.

It is an arithmetic number, because the mean of its divisors is an integer number (9328835829816).

Almost surely, 2^{121111202000010} is an apocalyptic number.

121111202000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121111202000010 is an abundant number, since it is smaller than the sum of its proper divisors (177411544554102).

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

121111202000010 is a wasteful number, since it uses less digits than its factorization.

121111202000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109109191038.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121111202000010 its reverse (10000202111121), we get a palindrome (131111404111131).

The spelling of 121111202000010 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred two million, ten", and thus it is an aban number.