20101211220110 has 16 divisors (see below), whose sum is σ = 36226251076032. Its totient is φ = 8030690959200.

The previous prime is 20101211220107. The next prime is 20101211220193. The reversal of 20101211220110 is 1102211210102.

It is a congruent number.

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, 1224182486 + ... + 1224198905.

It is an arithmetic number, because the mean of its divisors is an integer number (2264140692252).

Almost surely, 2^{20101211220110} is an apocalyptic number.

20101211220110 is a deficient number, since it is larger than the sum of its proper divisors (16125039855922).

20101211220110 is a wasteful number, since it uses less digits than its factorization.

20101211220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448382219.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20101211220110 its reverse (1102211210102), we get a palindrome (21203422430212).

The spelling of 20101211220110 in words is "twenty trillion, one hundred one billion, two hundred eleven million, two hundred twenty thousand, one hundred ten".