22420222212401 has 4 divisors (see below), whose sum is σ = 24144854690292. Its totient is φ = 20695589734512.

The previous prime is 22420222212397. The next prime is 22420222212407. The reversal of 22420222212401 is 10421222202422.

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 1419779487025 + 21000442725376 = 1191545^2 + 4582624^2 .

It is a cyclic number.

It is not a de Polignac number, because 22420222212401 - 2² = 22420222212397 is a prime.

It is a super-3 number, since 3×22420222212401³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22420222212407) 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, 862316238926 + ... + 862316238951.

It is an arithmetic number, because the mean of its divisors is an integer number (6036213672573).

Almost surely, 2^{22420222212401} is an apocalyptic number.

It is an amenable number.

22420222212401 is a deficient number, since it is larger than the sum of its proper divisors (1724632477891).

22420222212401 is a wasteful number, since it uses less digits than its factorization.

22420222212401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724632477890.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 22420222212401 its reverse (10421222202422), we get a palindrome (32841444414823).

The spelling of 22420222212401 in words is "twenty-two trillion, four hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, four hundred one".