22202111012121 has 24 divisors (see below), whose sum is σ = 32409697496904. Its totient is φ = 14644580981760.

The previous prime is 22202111012099. The next prime is 22202111012131. The reversal of 22202111012121 is 12121011120222.

It can be written as a sum of positive squares in 4 ways, for example, as 3166036600896 + 19036074411225 = 1779336^2 + 4363035^2 .

It is not a de Polignac number, because 22202111012121 - 2³⁵ = 22167751273753 is a prime.

It is a super-3 number, since 3×22202111012121³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22202111012094 and 22202111012103.

It is not an unprimeable number, because it can be changed into a prime (22202111012131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 652626 + ... + 6695531.

It is an arithmetic number, because the mean of its divisors is an integer number (1350404062371).

Almost surely, 2^{22202111012121} is an apocalyptic number.

It is an amenable number.

22202111012121 is a deficient number, since it is larger than the sum of its proper divisors (10207586484783).

22202111012121 is a wasteful number, since it uses less digits than its factorization.

22202111012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351721 (or 7351718 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22202111012121 its reverse (12121011120222), we get a palindrome (34323122132343).

The spelling of 22202111012121 in words is "twenty-two trillion, two hundred two billion, one hundred eleven million, twelve thousand, one hundred twenty-one".