202012211222220 has 96 divisors (see below), whose sum is σ = 648291337344000. Its totient is φ = 46041915320064.

The previous prime is 202012211222189. The next prime is 202012211222281. The reversal of 202012211222220 is 22222112210202.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 688938600 + ... + 689231759.

It is an arithmetic number, because the mean of its divisors is an integer number (6753034764000).

Almost surely, 2^{202012211222220} is an apocalyptic number.

202012211222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012211222220 is an abundant number, since it is smaller than the sum of its proper divisors (446279126121780).

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

202012211222220 is a wasteful number, since it uses less digits than its factorization.

202012211222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378170727 (or 1378170725 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 202012211222220 its reverse (22222112210202), we get a palindrome (224234323432422).

The spelling of 202012211222220 in words is "two hundred two trillion, twelve billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twenty".