122020212010021 has 8 divisors (see below), whose sum is σ = 135645297718784. Its totient is φ = 109000685666160.

The previous prime is 122020212009977. The next prime is 122020212010027. The reversal of 122020212010021 is 120010212020221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122020212010021 - 2²¹ = 122020209912869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122020212009977 and 122020212010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020212010027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151389840801 + ... + 151389841606.

It is an arithmetic number, because the mean of its divisors is an integer number (16955662214848).

Almost surely, 2^{122020212010021} is an apocalyptic number.

It is an amenable number.

122020212010021 is a deficient number, since it is larger than the sum of its proper divisors (13625085708763).

122020212010021 is a wasteful number, since it uses less digits than its factorization.

122020212010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302779682451.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122020212010021 its reverse (120010212020221), we get a palindrome (242030424030242).

The spelling of 122020212010021 in words is "one hundred twenty-two trillion, twenty billion, two hundred twelve million, ten thousand, twenty-one".