222012212020212 has 48 divisors (see below), whose sum is σ = 540566679421440. Its totient is φ = 70784511032928.

The previous prime is 222012212020211. The next prime is 222012212020271. The reversal of 222012212020212 is 212020212210222.

It is a super-2 number, since 2×222012212020212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012212020211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470262 + ... + 21123117.

It is an arithmetic number, because the mean of its divisors is an integer number (11261805821280).

Almost surely, 2^{222012212020212} is an apocalyptic number.

It is an amenable number.

222012212020212 is an abundant number, since it is smaller than the sum of its proper divisors (318554467401228).

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

222012212020212 is a wasteful number, since it uses less digits than its factorization.

222012212020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22629012 (or 22629010 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222012212020212 its reverse (212020212210222), we get a palindrome (434032424230434).

The spelling of 222012212020212 in words is "two hundred twenty-two trillion, twelve billion, two hundred twelve million, twenty thousand, two hundred twelve".