2120202312220 has 48 divisors (see below), whose sum is σ = 4691744416800. Its totient is φ = 802591130880.

The previous prime is 2120202312169. The next prime is 2120202312229. The reversal of 2120202312220 is 222132020212.

It is a super-2 number, since 2×2120202312220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120202312229) 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, 2607075 + ... + 3322234.

It is an arithmetic number, because the mean of its divisors is an integer number (97744675350).

Almost surely, 2^{2120202312220} is an apocalyptic number.

2120202312220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120202312220 is an abundant number, since it is smaller than the sum of its proper divisors (2571542104580).

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

2120202312220 is a wasteful number, since it uses less digits than its factorization.

2120202312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930278 (or 5930276 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2120202312220 its reverse (222132020212), we get a palindrome (2342334332432).

The spelling of 2120202312220 in words is "two trillion, one hundred twenty billion, two hundred two million, three hundred twelve thousand, two hundred twenty".