22420040404025 has 24 divisors (see below), whose sum is σ = 30330675004224. Its totient is φ = 16304153342400.

The previous prime is 22420040403983. The next prime is 22420040404033. The reversal of 22420040404025 is 52040404002422.

It is not a de Polignac number, because 22420040404025 - 2²² = 22420036209721 is a prime.

It is a super-2 number, since 2×22420040404025² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55844 + ... + 6696506.

It is an arithmetic number, because the mean of its divisors is an integer number (1263778125176).

Almost surely, 2^{22420040404025} is an apocalyptic number.

22420040404025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22420040404025 is a deficient number, since it is larger than the sum of its proper divisors (7910634600199).

22420040404025 is a wasteful number, since it uses less digits than its factorization.

22420040404025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652961 (or 6652956 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 22420040404025 its reverse (52040404002422), we get a palindrome (74460444406447).

The spelling of 22420040404025 in words is "twenty-two trillion, four hundred twenty billion, forty million, four hundred four thousand, twenty-five".