20100220121010 has 16 divisors (see below), whose sum is σ = 48240528290496. Its totient is φ = 5360058698928.

The previous prime is 20100220120993. The next prime is 20100220121029. The reversal of 20100220121010 is 1012102200102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335003668654 + ... + 335003668713.

It is an arithmetic number, because the mean of its divisors is an integer number (3015033018156).

Almost surely, 2^{20100220121010} is an apocalyptic number.

20100220121010 is an abundant number, since it is smaller than the sum of its proper divisors (28140308169486).

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

20100220121010 is a wasteful number, since it uses less digits than its factorization.

20100220121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670007337377.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20100220121010 its reverse (1012102200102), we get a palindrome (21112322321112).

The spelling of 20100220121010 in words is "twenty trillion, one hundred billion, two hundred twenty million, one hundred twenty-one thousand, ten".