1020121110210 has 64 divisors (see below), whose sum is σ = 2592578461824. Its totient is φ = 256003660800.

The previous prime is 1020121110209. The next prime is 1020121110223. The reversal of 1020121110210 is 120111210201.

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, 5031705 + ... + 5230515.

It is an arithmetic number, because the mean of its divisors is an integer number (40509038466).

Almost surely, 2^{1020121110210} is an apocalyptic number.

1020121110210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020121110210 is an abundant number, since it is smaller than the sum of its proper divisors (1572457351614).

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

1020121110210 is a wasteful number, since it uses less digits than its factorization.

1020121110210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208899.

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

Adding to 1020121110210 its reverse (120111210201), we get a palindrome (1140232320411).

Subtracting from 1020121110210 its reverse (120111210201), we obtain a palindrome (900009900009).

The spelling of 1020121110210 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred ten thousand, two hundred ten".