22101100102420 has 48 divisors (see below), whose sum is σ = 46618196986368. Its totient is φ = 8801225901440.

The previous prime is 22101100102381. The next prime is 22101100102423. The reversal of 22101100102420 is 2420100110122.

It is a junction number, because it is equal to n+sod(n) for n = 22101100102394 and 22101100102403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101100102423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219417789 + ... + 219518491.

It is an arithmetic number, because the mean of its divisors is an integer number (971212437216).

Almost surely, 2^{22101100102420} is an apocalyptic number.

22101100102420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101100102420 is an abundant number, since it is smaller than the sum of its proper divisors (24517096883948).

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

22101100102420 is a wasteful number, since it uses less digits than its factorization.

22101100102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149280 (or 149278 counting only the distinct ones).

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

Adding to 22101100102420 its reverse (2420100110122), we get a palindrome (24521200212542).

The spelling of 22101100102420 in words is "twenty-two trillion, one hundred one billion, one hundred million, one hundred two thousand, four hundred twenty".