22012211010100 has 36 divisors (see below), whose sum is σ = 47767549843468. Its totient is φ = 8804690496000.

The previous prime is 22012211010011. The next prime is 22012211010113. The reversal of 22012211010100 is 101011221022.

It can be written as a sum of positive squares in 6 ways, for example, as 11985444 + 22012199024656 = 3462^2 + 4691716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2183170 + ... + 6985030.

Almost surely, 2^{22012211010100} is an apocalyptic number.

22012211010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012211010100 is an abundant number, since it is smaller than the sum of its proper divisors (25755338833368).

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

22012211010100 is a wasteful number, since it uses less digits than its factorization.

22012211010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847716 (or 4847709 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22012211010100 its reverse (101011221022), we get a palindrome (22113222231122).

The spelling of 22012211010100 in words is "twenty-two trillion, twelve billion, two hundred eleven million, ten thousand, one hundred".