1022400205239 has 48 divisors (see below), whose sum is σ = 1644730859520. Its totient is φ = 562609172160.

The previous prime is 1022400205219. The next prime is 1022400205249. The reversal of 1022400205239 is 9325020042201.

It is not a de Polignac number, because 1022400205239 - 2¹⁷ = 1022400074167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022400205219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1319634 + ... + 1945824.

It is an arithmetic number, because the mean of its divisors is an integer number (34265226240).

Almost surely, 2^{1022400205239} is an apocalyptic number.

1022400205239 is a deficient number, since it is larger than the sum of its proper divisors (622330654281).

1022400205239 is a wasteful number, since it uses less digits than its factorization.

1022400205239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626620 (or 626613 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 1022400205239 in words is "one trillion, twenty-two billion, four hundred million, two hundred five thousand, two hundred thirty-nine".