121100210120010 has 96 divisors (see below), whose sum is σ = 319477078751040. Its totient is φ = 29356457518080.

The previous prime is 121100210120003. The next prime is 121100210120051. The reversal of 121100210120010 is 10021012001121.

It is a super-2 number, since 2×121100210120010² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92287386 + ... + 93590394.

It is an arithmetic number, because the mean of its divisors is an integer number (3327886236990).

Almost surely, 2^{121100210120010} is an apocalyptic number.

121100210120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121100210120010 is an abundant number, since it is smaller than the sum of its proper divisors (198376868631030).

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

121100210120010 is a wasteful number, since it uses less digits than its factorization.

121100210120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328644 (or 1328633 counting only the distinct ones).

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

Adding to 121100210120010 its reverse (10021012001121), we get a palindrome (131121222121131).

The spelling of 121100210120010 in words is "one hundred twenty-one trillion, one hundred billion, two hundred ten million, one hundred twenty thousand, ten".