10121021110 has 32 divisors (see below), whose sum is σ = 18306699840. Its totient is φ = 4028696448.

The previous prime is 10121021087. The next prime is 10121021149. The reversal of 10121021110 is 1112012101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3756924 + ... + 3759616.

It is an arithmetic number, because the mean of its divisors is an integer number (572084370).

Almost surely, 2^10121021110 is an apocalyptic number.

10121021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10121021110 is a deficient number, since it is larger than the sum of its proper divisors (8185678730).

10121021110 is a wasteful number, since it uses less digits than its factorization.

10121021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4392.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10121021110 its reverse (1112012101), we get a palindrome (11233033211).

Subtracting from 10121021110 its reverse (1112012101), we obtain a palindrome (9009009009).

The spelling of 10121021110 in words is "ten billion, one hundred twenty-one million, twenty-one thousand, one hundred ten".