211220010021202 has 128 divisors (see below), whose sum is σ = 408020140007424. Its totient is φ = 79706447428608.

The previous prime is 211220010021197. The next prime is 211220010021221. The reversal of 211220010021202 is 202120010022112.

It is a happy number.

It is a super-2 number, since 2×211220010021202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3870101338 + ... + 3870155914.

It is an arithmetic number, because the mean of its divisors is an integer number (3187657343808).

Almost surely, 2^{211220010021202} is an apocalyptic number.

211220010021202 is a deficient number, since it is larger than the sum of its proper divisors (196800129986222).

211220010021202 is a wasteful number, since it uses less digits than its factorization.

211220010021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57152.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211220010021202 its reverse (202120010022112), we get a palindrome (413340020043314).

The spelling of 211220010021202 in words is "two hundred eleven trillion, two hundred twenty billion, ten million, twenty-one thousand, two hundred two".