20100202012220 has 24 divisors (see below), whose sum is σ = 46047735519408. Its totient is φ = 7309164368000.

The previous prime is 20100202012129. The next prime is 20100202012229. The reversal of 20100202012220 is 2221020200102.

It is a junction number, because it is equal to n+sod(n) for n = 20100202012195 and 20100202012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100202012229) 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, 45682277081 + ... + 45682277520.

It is an arithmetic number, because the mean of its divisors is an integer number (1918655646642).

Almost surely, 2^{20100202012220} is an apocalyptic number.

20100202012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100202012220 is an abundant number, since it is smaller than the sum of its proper divisors (25947533507188).

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

20100202012220 is a wasteful number, since it uses less digits than its factorization.

20100202012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91364554621 (or 91364554619 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20100202012220 its reverse (2221020200102), we get a palindrome (22321222212322).

The spelling of 20100202012220 in words is "twenty trillion, one hundred billion, two hundred two million, twelve thousand, two hundred twenty".