1242022355 has 24 divisors (see below), whose sum is σ = 1735302528. Its totient is φ = 850915968.

The previous prime is 1242022339. The next prime is 1242022373. The reversal of 1242022355 is 5532202421.

It is not a de Polignac number, because 1242022355 - 2⁴ = 1242022339 is a prime.

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, 539567 + ... + 541863.

It is an arithmetic number, because the mean of its divisors is an integer number (72304272).

Almost surely, 2^1242022355 is an apocalyptic number.

1242022355 is a deficient number, since it is larger than the sum of its proper divisors (493280173).

1242022355 is a wasteful number, since it uses less digits than its factorization.

1242022355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523 (or 4516 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1242022355 is about 35242.3375359808. The cubic root of 1242022355 is about 1074.9208104638.

Adding to 1242022355 its reverse (5532202421), we get a palindrome (6774224776).

The spelling of 1242022355 in words is "one billion, two hundred forty-two million, twenty-two thousand, three hundred fifty-five".