20021220101110 has 16 divisors (see below), whose sum is σ = 36052094491776. Its totient is φ = 8005399527168.

The previous prime is 20021220101107. The next prime is 20021220101111. The reversal of 20021220101110 is 1110102212002.

It is a super-2 number, since 2×20021220101110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021220101111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386036934 + ... + 386088793.

It is an arithmetic number, because the mean of its divisors is an integer number (2253255905736).

Almost surely, 2^{20021220101110} is an apocalyptic number.

20021220101110 is a deficient number, since it is larger than the sum of its proper divisors (16030874390666).

20021220101110 is a wasteful number, since it uses less digits than its factorization.

20021220101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772128327.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021220101110 its reverse (1110102212002), we get a palindrome (21131322313112).

The spelling of 20021220101110 in words is "twenty trillion, twenty-one billion, two hundred twenty million, one hundred one thousand, one hundred ten".