1222020102100 has 72 divisors (see below), whose sum is σ = 3030933660608. Its totient is φ = 418933555200.

The previous prime is 1222020102097. The next prime is 1222020102103. The reversal of 1222020102100 is 12010202221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222020102097) and next prime (1222020102103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222020102103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6829780 + ... + 7006420.

Almost surely, 2^{1222020102100} is an apocalyptic number.

1222020102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222020102100 is an abundant number, since it is smaller than the sum of its proper divisors (1808913558508).

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

1222020102100 is a wasteful number, since it uses less digits than its factorization.

1222020102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186545 (or 186538 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1222020102100 its reverse (12010202221), we get a palindrome (1234030304321).

The spelling of 1222020102100 in words is "one trillion, two hundred twenty-two billion, twenty million, one hundred two thousand, one hundred".