122021222001001 has 4 divisors (see below), whose sum is σ = 123229352912004. Its totient is φ = 120813091090000.

The previous prime is 122021222000999. The next prime is 122021222001023. The reversal of 122021222001001 is 100100222120221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107167320187225 + 14853901813776 = 10352165^2 + 3854076^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021222001001 - 2¹ = 122021222000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021222001061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604065455350 + ... + 604065455551.

It is an arithmetic number, because the mean of its divisors is an integer number (30807338228001).

Almost surely, 2^{122021222001001} is an apocalyptic number.

It is an amenable number.

122021222001001 is a deficient number, since it is larger than the sum of its proper divisors (1208130911003).

122021222001001 is a wasteful number, since it uses less digits than its factorization.

122021222001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208130911002.

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

Adding to 122021222001001 its reverse (100100222120221), we get a palindrome (222121444121222).

The spelling of 122021222001001 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred twenty-two million, one thousand, one".