20222002021220 has 24 divisors (see below), whose sum is σ = 44964216259704. Its totient is φ = 7612988996096.

The previous prime is 20222002021211. The next prime is 20222002021423. The reversal of 20222002021220 is 2212020022202.

It can be written as a sum of positive squares in 4 ways, for example, as 8425469907556 + 11796532113664 = 2902666^2 + 3434608^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29738237927 + ... + 29738238606.

It is an arithmetic number, because the mean of its divisors is an integer number (1873509010821).

Almost surely, 2^{20222002021220} is an apocalyptic number.

20222002021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222002021220 is an abundant number, since it is smaller than the sum of its proper divisors (24742214238484).

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

20222002021220 is a wasteful number, since it uses less digits than its factorization.

20222002021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59476476559 (or 59476476557 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20222002021220 its reverse (2212020022202), we get a palindrome (22434022043422).

The spelling of 20222002021220 in words is "twenty trillion, two hundred twenty-two billion, two million, twenty-one thousand, two hundred twenty".