121020211100010 has 32 divisors (see below), whose sum is σ = 290474185865472. Its totient is φ = 32269203046080.

The previous prime is 121020211099999. The next prime is 121020211100011. The reversal of 121020211100010 is 10001112020121.

It is a super-2 number, since 2×121020211100010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121020211100011) 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, 177982969 + ... + 178661628.

It is an arithmetic number, because the mean of its divisors is an integer number (9077318308296).

Almost surely, 2^{121020211100010} is an apocalyptic number.

121020211100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020211100010 is an abundant number, since it is smaller than the sum of its proper divisors (169453974765462).

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

121020211100010 is a wasteful number, since it uses less digits than its factorization.

121020211100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356655918.

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

Adding to 121020211100010 its reverse (10001112020121), we get a palindrome (131021323120131).

The spelling of 121020211100010 in words is "one hundred twenty-one trillion, twenty billion, two hundred eleven million, one hundred thousand, ten".