20301011220 has 96 divisors (see below), whose sum is σ = 66474067968. Its totient is φ = 4532314752.

The previous prime is 20301011219. The next prime is 20301011221. The reversal of 20301011220 is 2211010302.

It is an interprime number because it is at equal distance from previous prime (20301011219) and next prime (20301011221).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20301011196 and 20301011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301011221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543984 + ... + 580103.

It is an arithmetic number, because the mean of its divisors is an integer number (692438208).

Almost surely, 2^20301011220 is an apocalyptic number.

20301011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20301011220 is an abundant number, since it is smaller than the sum of its proper divisors (46173056748).

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

20301011220 is a wasteful number, since it uses less digits than its factorization.

20301011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124149 (or 1124147 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20301011220 its reverse (2211010302), we get a palindrome (22512021522).

The spelling of 20301011220 in words is "twenty billion, three hundred one million, eleven thousand, two hundred twenty".