12210002121020 has 96 divisors (see below), whose sum is σ = 29576254740480. Its totient is φ = 4187453794560.

The previous prime is 12210002120999. The next prime is 12210002121041. The reversal of 12210002121020 is 2012120001221.

It is an interprime number because it is at equal distance from previous prime (12210002120999) and next prime (12210002121041).

It is a junction number, because it is equal to n+sod(n) for n = 12210002120986 and 12210002121004.

It is a congruent number.

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, 5617307 + ... + 7481586.

It is an arithmetic number, because the mean of its divisors is an integer number (308085986880).

Almost surely, 2^{12210002121020} is an apocalyptic number.

12210002121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210002121020 is an abundant number, since it is smaller than the sum of its proper divisors (17366252619460).

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

12210002121020 is a wasteful number, since it uses less digits than its factorization.

12210002121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13099155 (or 13099153 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12210002121020 its reverse (2012120001221), we get a palindrome (14222122122241).

The spelling of 12210002121020 in words is "twelve trillion, two hundred ten billion, two million, one hundred twenty-one thousand, twenty".