2202011221020 has 48 divisors (see below), whose sum is σ = 6639910761120. Its totient is φ = 542033531136.

The previous prime is 2202011221019. The next prime is 2202011221021. The reversal of 2202011221020 is 201221102022.

It is an interprime number because it is at equal distance from previous prime (2202011221019) and next prime (2202011221021).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202011221021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411544875 + ... + 1411546434.

It is an arithmetic number, because the mean of its divisors is an integer number (138331474190).

Almost surely, 2^{2202011221020} is an apocalyptic number.

2202011221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202011221020 is an abundant number, since it is smaller than the sum of its proper divisors (4437899540100).

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

2202011221020 is a wasteful number, since it uses less digits than its factorization.

2202011221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823091334 (or 2823091332 counting only the distinct ones).

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

Adding to 2202011221020 its reverse (201221102022), we get a palindrome (2403232323042).

The spelling of 2202011221020 in words is "two trillion, two hundred two billion, eleven million, two hundred twenty-one thousand, twenty".