201212122221022 has 32 divisors (see below), whose sum is σ = 336282373440000. Its totient is φ = 89508580553280.

The previous prime is 201212122220969. The next prime is 201212122221107. The reversal of 201212122221022 is 220122221212102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 201212122220984 and 201212122221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10813533 + ... + 22789399.

It is an arithmetic number, because the mean of its divisors is an integer number (10508824170000).

Almost surely, 2^{201212122221022} is an apocalyptic number.

201212122221022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201212122221022 is a deficient number, since it is larger than the sum of its proper divisors (135070251218978).

201212122221022 is a wasteful number, since it uses less digits than its factorization.

201212122221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992176.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 201212122221022 its reverse (220122221212102), we get a palindrome (421334343433124).

The spelling of 201212122221022 in words is "two hundred one trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty-two".