202211221020 has 48 divisors (see below), whose sum is σ = 566210954400. Its totient is φ = 53921131776.

The previous prime is 202211221007. The next prime is 202211221033. The reversal of 202211221020 is 20122112202.

It is an interprime number because it is at equal distance from previous prime (202211221007) and next prime (202211221033).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3266274 + ... + 3327606.

It is an arithmetic number, because the mean of its divisors is an integer number (11796061550).

Almost surely, 2^202211221020 is an apocalyptic number.

202211221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202211221020 is an abundant number, since it is smaller than the sum of its proper divisors (363999733380).

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

202211221020 is a wasteful number, since it uses less digits than its factorization.

202211221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116294 (or 116292 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202211221020 its reverse (20122112202), we get a palindrome (222333333222).

The spelling of 202211221020 in words is "two hundred two billion, two hundred eleven million, two hundred twenty-one thousand, twenty".