20101202221120 has 56 divisors (see below), whose sum is σ = 47867276668608. Its totient is φ = 8040264384000.

The previous prime is 20101202221021. The next prime is 20101202221123. The reversal of 20101202221120 is 2112220210102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 20101202221094 and 20101202221103.

It is not an unprimeable number, because it can be changed into a prime (20101202221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11330395 + ... + 12983845.

Almost surely, 2^{20101202221120} is an apocalyptic number.

20101202221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101202221120 is an abundant number, since it is smaller than the sum of its proper divisors (27766074447488).

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

20101202221120 is a wasteful number, since it uses less digits than its factorization.

20101202221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691459 (or 1691449 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20101202221120 its reverse (2112220210102), we get a palindrome (22213422431222).

The spelling of 20101202221120 in words is "twenty trillion, one hundred one billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty".