222002121211 has 48 divisors (see below), whose sum is σ = 263783520000. Its totient is φ = 186003941760.

The previous prime is 222002121191. The next prime is 222002121227. The reversal of 222002121211 is 112121200222.

It is a happy number.

It is not a de Polignac number, because 222002121211 - 2¹⁹ = 222001596923 is a prime.

It is a super-2 number, since 2×222002121211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222002121241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12189490 + ... + 12207688.

It is an arithmetic number, because the mean of its divisors is an integer number (5495490000).

Almost surely, 2^222002121211 is an apocalyptic number.

222002121211 is a deficient number, since it is larger than the sum of its proper divisors (41781398789).

222002121211 is a wasteful number, since it uses less digits than its factorization.

222002121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404 (or 18391 counting only the distinct ones).

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

Adding to 222002121211 its reverse (112121200222), we get a palindrome (334123321433).

The spelling of 222002121211 in words is "two hundred twenty-two billion, two million, one hundred twenty-one thousand, two hundred eleven".