1290012022 has 16 divisors (see below), whose sum is σ = 2088525600. Its totient is φ = 594058752.

The previous prime is 1290011999. The next prime is 1290012023. The reversal of 1290012022 is 2202100921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290012023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43578 + ... + 66925.

It is an arithmetic number, because the mean of its divisors is an integer number (130532850).

Almost surely, 2^1290012022 is an apocalyptic number.

1290012022 is a deficient number, since it is larger than the sum of its proper divisors (798513578).

1290012022 is a wasteful number, since it uses less digits than its factorization.

1290012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110967.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1290012022 is about 35916.7373518253. The cubic root of 1290012022 is about 1088.5906150951.

Adding to 1290012022 its reverse (2202100921), we get a palindrome (3492112943).

The spelling of 1290012022 in words is "one billion, two hundred ninety million, twelve thousand, twenty-two".