210002121222220 has 24 divisors (see below), whose sum is σ = 441004737351024. Its totient is φ = 84000794625216.

The previous prime is 210002121222181. The next prime is 210002121222239. The reversal of 210002121222220 is 22222121200012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46935334 + ... + 51214546.

It is an arithmetic number, because the mean of its divisors is an integer number (18375197389626).

Almost surely, 2^{210002121222220} is an apocalyptic number.

210002121222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002121222220 is an abundant number, since it is smaller than the sum of its proper divisors (231002616128804).

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

210002121222220 is a wasteful number, since it uses less digits than its factorization.

210002121222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732969 (or 6732967 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 210002121222220 its reverse (22222121200012), we get a palindrome (232224242422232).

The spelling of 210002121222220 in words is "two hundred ten trillion, two billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty".