1222994641 has 16 divisors (see below), whose sum is σ = 1452830400. Its totient is φ = 1016971200.

The previous prime is 1222994639. The next prime is 1222994659. The reversal of 1222994641 is 1464992221.

It is not a de Polignac number, because 1222994641 - 2¹ = 1222994639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222994594 and 1222994603.

It is not an unprimeable number, because it can be changed into a prime (1222994621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94830 + ... + 106951.

It is an arithmetic number, because the mean of its divisors is an integer number (90801900).

Almost surely, 2^1222994641 is an apocalyptic number.

1222994641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222994641 is a deficient number, since it is larger than the sum of its proper divisors (229835759).

1222994641 is a wasteful number, since it uses less digits than its factorization.

1222994641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201840.

The product of its digits is 62208, while the sum is 40.

The square root of 1222994641 is about 34971.3402802924. The cubic root of 1222994641 is about 1069.4032952721.

The spelling of 1222994641 in words is "one billion, two hundred twenty-two million, nine hundred ninety-four thousand, six hundred forty-one".