20220102121220 has 24 divisors (see below), whose sum is σ = 42462309456000. Its totient is φ = 8088022752992.

The previous prime is 20220102121217. The next prime is 20220102121231. The reversal of 20220102121220 is 2212120102202.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11439611 + ... + 13088349.

It is an arithmetic number, because the mean of its divisors is an integer number (1769262894000).

Almost surely, 2^{20220102121220} is an apocalyptic number.

20220102121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220102121220 is an abundant number, since it is smaller than the sum of its proper divisors (22242207334780).

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

20220102121220 is a wasteful number, since it uses less digits than its factorization.

20220102121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261947 (or 2261945 counting only the distinct ones).

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

Adding to 20220102121220 its reverse (2212120102202), we get a palindrome (22432222223422).

The spelling of 20220102121220 in words is "twenty trillion, two hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred twenty".