22220202012121 has 8 divisors (see below), whose sum is σ = 22245225840000. Its totient is φ = 22195179573840.

The previous prime is 22220202012091. The next prime is 22220202012133. The reversal of 22220202012121 is 12121020202222.

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 22220202012121 - 2⁵ = 22220202012089 is a prime.

It is a super-2 number, since 2×22220202012121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220202012161) 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, 33505255 + ... + 34162003.

It is an arithmetic number, because the mean of its divisors is an integer number (2780653230000).

Almost surely, 2^{22220202012121} is an apocalyptic number.

It is an amenable number.

22220202012121 is a deficient number, since it is larger than the sum of its proper divisors (25023827879).

22220202012121 is an equidigital number, since it uses as much as digits as its factorization.

22220202012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694799.

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

Adding to 22220202012121 its reverse (12121020202222), we get a palindrome (34341222214343).

The spelling of 22220202012121 in words is "twenty-two trillion, two hundred twenty billion, two hundred two million, twelve thousand, one hundred twenty-one".