22012212210210 has 192 divisors, whose sum is σ = 58983746421600. Its totient is φ = 5691360153600.

The previous prime is 22012212210143. The next prime is 22012212210271. The reversal of 22012212210210 is 1201221221022.

It is a happy number.

22012212210210 is a `hidden beast` number, since 2 + 20 + 1 + 221 + 2 + 210 + 210 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 18690585674121 + 3321626536089 = 4323261^2 + 1822533^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2223226260 + ... + 2223236160.

Almost surely, 2^{22012212210210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012212210210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29491873210800).

22012212210210 is an abundant number, since it is smaller than the sum of its proper divisors (36971534211390).

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

22012212210210 is a wasteful number, since it uses less digits than its factorization.

22012212210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12213 (or 12210 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22012212210210 its reverse (1201221221022), we get a palindrome (23213433431232).

The spelling of 22012212210210 in words is "twenty-two trillion, twelve billion, two hundred twelve million, two hundred ten thousand, two hundred ten".