12020001210 has 64 divisors (see below), whose sum is σ = 36632390400. Its totient is φ = 2747428416.

The previous prime is 12020001199. The next prime is 12020001221. The reversal of 12020001210 is 1210002021.

It is an interprime number because it is at equal distance from previous prime (12020001199) and next prime (12020001221).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12020001192 and 12020001201.

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, 3178005 + ... + 3181784.

It is an arithmetic number, because the mean of its divisors is an integer number (572381100).

Almost surely, 2^12020001210 is an apocalyptic number.

12020001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020001210 is an abundant number, since it is smaller than the sum of its proper divisors (24612389190).

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

12020001210 is a wasteful number, since it uses less digits than its factorization.

12020001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359812 (or 6359806 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12020001210 its reverse (1210002021), we get a palindrome (13230003231).

The spelling of 12020001210 in words is "twelve billion, twenty million, one thousand, two hundred ten".