22002012101220 has 24 divisors (see below), whose sum is σ = 61605633883584. Its totient is φ = 5867203226976.

The previous prime is 22002012101149. The next prime is 22002012101221. The reversal of 22002012101220 is 2210121020022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22002012101220.

It is not an unprimeable number, because it can be changed into a prime (22002012101221) 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, 183350100784 + ... + 183350100903.

It is an arithmetic number, because the mean of its divisors is an integer number (2566901411816).

Almost surely, 2^{22002012101220} is an apocalyptic number.

22002012101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002012101220 is an abundant number, since it is smaller than the sum of its proper divisors (39603621782364).

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

22002012101220 is a wasteful number, since it uses less digits than its factorization.

22002012101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366700201699 (or 366700201697 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22002012101220 its reverse (2210121020022), we get a palindrome (24212133121242).

The spelling of 22002012101220 in words is "twenty-two trillion, two billion, twelve million, one hundred one thousand, two hundred twenty".