1022250045242 has 4 divisors (see below), whose sum is σ = 1533375067866. Its totient is φ = 511125022620.

The previous prime is 1022250045239. The next prime is 1022250045307. The reversal of 1022250045242 is 2425400522201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 781825555681 + 240424489561 = 884209^2 + 490331^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255562511309 + ... + 255562511312.

Almost surely, 2^{1022250045242} is an apocalyptic number.

1022250045242 is a deficient number, since it is larger than the sum of its proper divisors (511125022624).

1022250045242 is an equidigital number, since it uses as much as digits as its factorization.

1022250045242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511125022623.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 1022250045242 its reverse (2425400522201), we get a palindrome (3447650567443).

The spelling of 1022250045242 in words is "one trillion, twenty-two billion, two hundred fifty million, forty-five thousand, two hundred forty-two".