222002011021212 has 18 divisors (see below), whose sum is σ = 561171750081488. Its totient is φ = 74000670340392.

The previous prime is 222002011021177. The next prime is 222002011021247. The reversal of 222002011021212 is 212120110200222.

It is a happy number.

222002011021212 is a `hidden beast` number, since 2 + 220 + 0 + 201 + 10 + 21 + 212 = 666.

It is an interprime number because it is at equal distance from previous prime (222002011021177) and next prime (222002011021247).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×222002011021212² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083361264148 + ... + 3083361264219.

Almost surely, 2^{222002011021212} is an apocalyptic number.

It is an amenable number.

222002011021212 is an abundant number, since it is smaller than the sum of its proper divisors (339169739060276).

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

222002011021212 is a wasteful number, since it uses less digits than its factorization.

222002011021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166722528377 (or 6166722528372 counting only the distinct ones).

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

Adding to 222002011021212 its reverse (212120110200222), we get a palindrome (434122121221434).

The spelling of 222002011021212 in words is "two hundred twenty-two trillion, two billion, eleven million, twenty-one thousand, two hundred twelve".