212002031020 has 24 divisors (see below), whose sum is σ = 479450747664. Its totient is φ = 78277672896.

The previous prime is 212002030993. The next prime is 212002031023. The reversal of 212002031020 is 20130200212.

It is a super-2 number, since 2×212002031020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (212002031023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407695954 + ... + 407696473.

It is an arithmetic number, because the mean of its divisors is an integer number (19977114486).

Almost surely, 2^212002031020 is an apocalyptic number.

212002031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002031020 is an abundant number, since it is smaller than the sum of its proper divisors (267448716644).

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

212002031020 is a wasteful number, since it uses less digits than its factorization.

212002031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815392449 (or 815392447 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 212002031020 its reverse (20130200212), we get a palindrome (232132231232).

The spelling of 212002031020 in words is "two hundred twelve billion, two million, thirty-one thousand, twenty".