20012031222 has 64 divisors (see below), whose sum is σ = 42398263296. Its totient is φ = 6284044800.

The previous prime is 20012031197. The next prime is 20012031239. The reversal of 20012031222 is 22213021002.

It is a happy number.

It is a super-3 number, since 3×20012031222³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11110722 + ... + 11112522.

It is an arithmetic number, because the mean of its divisors is an integer number (662472864).

Almost surely, 2^20012031222 is an apocalyptic number.

20012031222 is an abundant number, since it is smaller than the sum of its proper divisors (22386232074).

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

20012031222 is a wasteful number, since it uses less digits than its factorization.

20012031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20012031222 its reverse (22213021002), we get a palindrome (42225052224).

The spelling of 20012031222 in words is "twenty billion, twelve million, thirty-one thousand, two hundred twenty-two".