20020311222 has 64 divisors (see below), whose sum is σ = 44276544000. Its totient is φ = 6002737664.

The previous prime is 20020311187. The next prime is 20020311251. The reversal of 20020311222 is 22211302002.

It is a happy number.

It is a super-2 number, since 2×20020311222² (a number of 21 digits) contains 22 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, 3513808 + ... + 3519500.

It is an arithmetic number, because the mean of its divisors is an integer number (691821000).

Almost surely, 2^20020311222 is an apocalyptic number.

20020311222 is an abundant number, since it is smaller than the sum of its proper divisors (24256232778).

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

20020311222 is a wasteful number, since it uses less digits than its factorization.

20020311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7237.

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

Adding to 20020311222 its reverse (22211302002), we get a palindrome (42231613224).

The spelling of 20020311222 in words is "twenty billion, twenty million, three hundred eleven thousand, two hundred twenty-two".