1221633962 has 8 divisors (see below), whose sum is σ = 1834231392. Its totient is φ = 610223500.

The previous prime is 1221633953. The next prime is 1221633967. The reversal of 1221633962 is 2693361221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1221633962² = 2984779074223634888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1221633967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294164 + ... + 298287.

It is an arithmetic number, because the mean of its divisors is an integer number (229278924).

Almost surely, 2^1221633962 is an apocalyptic number.

1221633962 is a deficient number, since it is larger than the sum of its proper divisors (612597430).

1221633962 is a wasteful number, since it uses less digits than its factorization.

1221633962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593484.

The product of its digits is 23328, while the sum is 35.

The square root of 1221633962 is about 34951.8806647082. The cubic root of 1221633962 is about 1069.0065493025.

The spelling of 1221633962 in words is "one billion, two hundred twenty-one million, six hundred thirty-three thousand, nine hundred sixty-two".