20122321020 has 48 divisors (see below), whose sum is σ = 56889530880. Its totient is φ = 5313854016.

The previous prime is 20122321019. The next prime is 20122321103. The reversal of 20122321020 is 2012322102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621840 + ... + 1634199.

It is an arithmetic number, because the mean of its divisors is an integer number (1185198560).

Almost surely, 2^20122321020 is an apocalyptic number.

20122321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122321020 is an abundant number, since it is smaller than the sum of its proper divisors (36767209860).

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

20122321020 is a wasteful number, since it uses less digits than its factorization.

20122321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256154 (or 3256152 counting only the distinct ones).

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

Adding to 20122321020 its reverse (2012322102), we get a palindrome (22134643122).

It can be divided in two parts, 201 and 22321020, that added together give a triangular number (22321221 = T₆₆₈₁).

The spelling of 20122321020 in words is "twenty billion, one hundred twenty-two million, three hundred twenty-one thousand, twenty".