210202022020 has 12 divisors (see below), whose sum is σ = 441424246284. Its totient is φ = 84080808800.

The previous prime is 210202021993. The next prime is 210202022087. The reversal of 210202022020 is 20220202012.

It can be written as a sum of positive squares in 2 ways, for example, as 142267769856 + 67934252164 = 377184^2 + 260642^2 .

It is a super-2 number, since 2×210202022020² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5255050531 + ... + 5255050570.

It is an arithmetic number, because the mean of its divisors is an integer number (36785353857).

Almost surely, 2^210202022020 is an apocalyptic number.

210202022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202022020 is an abundant number, since it is smaller than the sum of its proper divisors (231222224264).

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

210202022020 is a wasteful number, since it uses less digits than its factorization.

210202022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510101110 (or 10510101108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 210202022020 its reverse (20220202012), we get a palindrome (230422224032).

The spelling of 210202022020 in words is "two hundred ten billion, two hundred two million, twenty-two thousand, twenty".