22201210212100 has 18 divisors (see below), whose sum is σ = 48176626160474. Its totient is φ = 8880484084800.

The previous prime is 22201210212073. The next prime is 22201210212127. The reversal of 22201210212100 is 121201210222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22201210212073) and next prime (22201210212127).

It can be written as a sum of positive squares in 3 ways, for example, as 175609607364 + 22025600604736 = 419058^2 + 4693144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111006050961 + ... + 111006051160.

Almost surely, 2^{22201210212100} is an apocalyptic number.

22201210212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201210212100 is an abundant number, since it is smaller than the sum of its proper divisors (25975415948374).

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

22201210212100 is a wasteful number, since it uses less digits than its factorization.

22201210212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222012102135 (or 222012102128 counting only the distinct ones).

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

Adding to 22201210212100 its reverse (121201210222), we get a palindrome (22322411422322).

The spelling of 22201210212100 in words is "twenty-two trillion, two hundred one billion, two hundred ten million, two hundred twelve thousand, one hundred".