210212011220 has 24 divisors (see below), whose sum is σ = 455685393408. Its totient is φ = 81372391200.

The previous prime is 210212011213. The next prime is 210212011277. The reversal of 210212011220 is 22110212012.

It is a super-2 number, since 2×210212011220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210212011195 and 210212011204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169525196 + ... + 169526435.

It is an arithmetic number, because the mean of its divisors is an integer number (18986891392).

Almost surely, 2^210212011220 is an apocalyptic number.

210212011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210212011220 is an abundant number, since it is smaller than the sum of its proper divisors (245473382188).

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

210212011220 is a wasteful number, since it uses less digits than its factorization.

210212011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339051671 (or 339051669 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210212011220 its reverse (22110212012), we get a palindrome (232322223232).

The spelling of 210212011220 in words is "two hundred ten billion, two hundred twelve million, eleven thousand, two hundred twenty".