20021122062 has 12 divisors (see below), whose sum is σ = 43379097840. Its totient is φ = 6673707348.

The previous prime is 20021122061. The next prime is 20021122097. The reversal of 20021122062 is 26022112002.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1112284559 = 20021122062 / (2 + 0 + 0 + 2 + 1 + 1 + 2 + 2 + 0 + 6 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021122061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556142262 + ... + 556142297.

It is an arithmetic number, because the mean of its divisors is an integer number (3614924820).

Almost surely, 2^20021122062 is an apocalyptic number.

20021122062 is an abundant number, since it is smaller than the sum of its proper divisors (23357975778).

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

20021122062 is a wasteful number, since it uses less digits than its factorization.

20021122062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112284567 (or 1112284564 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20021122062 its reverse (26022112002), we get a palindrome (46043234064).

The spelling of 20021122062 in words is "twenty billion, twenty-one million, one hundred twenty-two thousand, sixty-two".