20101001121010 has 32 divisors (see below), whose sum is σ = 37443507171840. Its totient is φ = 7760229774528.

The previous prime is 20101001120983. The next prime is 20101001121043. The reversal of 20101001121010 is 1012110010102.

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

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, 12241962 + ... + 13786501.

It is an arithmetic number, because the mean of its divisors is an integer number (1170109599120).

Almost surely, 2^{20101001121010} is an apocalyptic number.

20101001121010 is a deficient number, since it is larger than the sum of its proper divisors (17342506050830).

20101001121010 is a wasteful number, since it uses less digits than its factorization.

20101001121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26031162.

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

Adding to 20101001121010 its reverse (1012110010102), we get a palindrome (21113111131112).

The spelling of 20101001121010 in words is "twenty trillion, one hundred one billion, one million, one hundred twenty-one thousand, ten".