20012222200 has 24 divisors (see below), whose sum is σ = 46528417080. Its totient is φ = 8004888800.

The previous prime is 20012222189. The next prime is 20012222249. The reversal of 20012222200 is 222221002.

It is a congruent number.

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, 50030356 + ... + 50030755.

It is an arithmetic number, because the mean of its divisors is an integer number (1938684045).

Almost surely, 2^20012222200 is an apocalyptic number.

20012222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012222200 is an abundant number, since it is smaller than the sum of its proper divisors (26516194880).

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

20012222200 is a wasteful number, since it uses less digits than its factorization.

20012222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100061127 (or 100061118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20012222200 its reverse (222221002), we get a palindrome (20234443202).

The spelling of 20012222200 in words is "twenty billion, twelve million, two hundred twenty-two thousand, two hundred".