122020220212021 has 12 divisors (see below), whose sum is σ = 122739029210308. Its totient is φ = 121305596765184.

The previous prime is 122020220212003. The next prime is 122020220212039. The reversal of 122020220212021 is 120212022020221.

It is an interprime number because it is at equal distance from previous prime (122020220212003) and next prime (122020220212039).

It can be written as a sum of positive squares in 6 ways, for example, as 47802856709521 + 74217363502500 = 6913961^2 + 8614950^2 .

It is not a de Polignac number, because 122020220212021 - 2²³ = 122020211823413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122020220212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020220212421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407872531 + ... + 408171583.

Almost surely, 2^{122020220212021} is an apocalyptic number.

It is an amenable number.

122020220212021 is a deficient number, since it is larger than the sum of its proper divisors (718808998287).

122020220212021 is an equidigital number, since it uses as much as digits as its factorization.

122020220212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313032 (or 312859 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122020220212021 its reverse (120212022020221), we get a palindrome (242232242232242).

The spelling of 122020220212021 in words is "one hundred twenty-two trillion, twenty billion, two hundred twenty million, two hundred twelve thousand, twenty-one".