211212021202 has 32 divisors (see below), whose sum is σ = 389983007232. Its totient is φ = 83545020864.

The previous prime is 211212021199. The next prime is 211212021269. The reversal of 211212021202 is 202120212112.

It is a happy number.

It is a super-2 number, since 2×211212021202² (a number of 23 digits) contains 22 as substring.

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, 1329303 + ... + 1479685.

It is an arithmetic number, because the mean of its divisors is an integer number (12186968976).

Almost surely, 2^211212021202 is an apocalyptic number.

211212021202 is a deficient number, since it is larger than the sum of its proper divisors (178770986030).

211212021202 is a wasteful number, since it uses less digits than its factorization.

211212021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158122.

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

Adding to 211212021202 its reverse (202120212112), we get a palindrome (413332233314).

The spelling of 211212021202 in words is "two hundred eleven billion, two hundred twelve million, twenty-one thousand, two hundred two".