2021012222200 has 24 divisors (see below), whose sum is σ = 4698853417080. Its totient is φ = 808404888800.

The previous prime is 2021012222179. The next prime is 2021012222221. The reversal of 2021012222200 is 22222101202.

It is an interprime number because it is at equal distance from previous prime (2021012222179) and next prime (2021012222221).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5052530356 + ... + 5052530755.

It is an arithmetic number, because the mean of its divisors is an integer number (195785559045).

Almost surely, 2^{2021012222200} is an apocalyptic number.

2021012222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021012222200 is an abundant number, since it is smaller than the sum of its proper divisors (2677841194880).

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

2021012222200 is a wasteful number, since it uses less digits than its factorization.

2021012222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105061127 (or 10105061118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2021012222200 its reverse (22222101202), we get a palindrome (2043234323402).

The spelling of 2021012222200 in words is "two trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, two hundred".