1022520623742 has 12 divisors (see below), whose sum is σ = 2215461351480. Its totient is φ = 340840207908.

The previous prime is 1022520623741. The next prime is 1022520623753. The reversal of 1022520623742 is 2473260252201.

1022520623742 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 5 + 20 + 623 + 7 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1022520623697 and 1022520623706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022520623741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28403350642 + ... + 28403350677.

It is an arithmetic number, because the mean of its divisors is an integer number (184621779290).

Almost surely, 2^{1022520623742} is an apocalyptic number.

1022520623742 is an abundant number, since it is smaller than the sum of its proper divisors (1192940727738).

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

1022520623742 is a wasteful number, since it uses less digits than its factorization.

1022520623742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56806701327 (or 56806701324 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 1022520623742 its reverse (2473260252201), we get a palindrome (3495780875943).

The spelling of 1022520623742 in words is "one trillion, twenty-two billion, five hundred twenty million, six hundred twenty-three thousand, seven hundred forty-two".