2102201222022 has 48 divisors (see below), whose sum is σ = 5036905577808. Its totient is φ = 628304221440.

The previous prime is 2102201221943. The next prime is 2102201222041. The reversal of 2102201222022 is 2202221022012.

2102201222022 is a `hidden beast` number, since 210 + 220 + 12 + 220 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2102201221986 and 2102201222004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72705943 + ... + 72734850.

It is an arithmetic number, because the mean of its divisors is an integer number (104935532871).

Almost surely, 2^{2102201222022} is an apocalyptic number.

2102201222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2102201222022 is an abundant number, since it is smaller than the sum of its proper divisors (2934704355786).

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

2102201222022 is a wasteful number, since it uses less digits than its factorization.

2102201222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145440885 (or 145440882 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2102201222022 its reverse (2202221022012), we get a palindrome (4304422244034).

The spelling of 2102201222022 in words is "two trillion, one hundred two billion, two hundred one million, two hundred twenty-two thousand, twenty-two".