20220201211220 has 48 divisors (see below), whose sum is σ = 47326539072960. Its totient is φ = 7211663092224.

The previous prime is 20220201211211. The next prime is 20220201211267. The reversal of 20220201211220 is 2211210202202.

It is a happy number.

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

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, 1565024594 + ... + 1565037513.

It is an arithmetic number, because the mean of its divisors is an integer number (985969564020).

Almost surely, 2^{20220201211220} is an apocalyptic number.

20220201211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220201211220 is an abundant number, since it is smaller than the sum of its proper divisors (27106337861740).

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

20220201211220 is a wasteful number, since it uses less digits than its factorization.

20220201211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130062152 (or 3130062150 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20220201211220 its reverse (2211210202202), we get a palindrome (22431411413422).

The spelling of 20220201211220 in words is "twenty trillion, two hundred twenty billion, two hundred one million, two hundred eleven thousand, two hundred twenty".