201012212220210 has 24 divisors (see below), whose sum is σ = 522631751772780. Its totient is φ = 53603256592032.

The previous prime is 201012212220151. The next prime is 201012212220227. The reversal of 201012212220210 is 12022212210102.

It is a happy number.

201012212220210 is a `hidden beast` number, since 2 + 0 + 10 + 1 + 221 + 2 + 220 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 199463733124569 + 1548479095641 = 14123163^2 + 1244379^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1116734512245 + ... + 1116734512424.

Almost surely, 2^{201012212220210} is an apocalyptic number.

201012212220210 is an abundant number, since it is smaller than the sum of its proper divisors (321619539552570).

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

201012212220210 is a wasteful number, since it uses less digits than its factorization.

201012212220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233469024682 (or 2233469024679 counting only the distinct ones).

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

Adding to 201012212220210 its reverse (12022212210102), we get a palindrome (213034424430312).

The spelling of 201012212220210 in words is "two hundred one trillion, twelve billion, two hundred twelve million, two hundred twenty thousand, two hundred ten".