1022250405402 has 32 divisors (see below), whose sum is σ = 2271726668160. Its totient is φ = 340741270080.

The previous prime is 1022250405401. The next prime is 1022250405419. The reversal of 1022250405402 is 2045040522201.

1022250405402 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 250 + 4 + 0 + 5 + 402 = 666.

It is a super-3 number, since 3×1022250405402³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1022250405401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2044002 + ... + 2494482.

It is an arithmetic number, because the mean of its divisors is an integer number (70991458380).

Almost surely, 2^{1022250405402} is an apocalyptic number.

1022250405402 is an abundant number, since it is smaller than the sum of its proper divisors (1249476262758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022250405402 is a wasteful number, since it uses less digits than its factorization.

1022250405402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492515 (or 492509 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 1022250405402 its reverse (2045040522201), we get a palindrome (3067290927603).

The spelling of 1022250405402 in words is "one trillion, twenty-two billion, two hundred fifty million, four hundred five thousand, four hundred two".