1221950162 has 8 divisors (see below), whose sum is σ = 1834702716. Its totient is φ = 610382592.

The previous prime is 1221950159. The next prime is 1221950167. The reversal of 1221950162 is 2610591221.

It can be written as a sum of positive squares in 2 ways, for example, as 909685921 + 312264241 = 30161^2 + 17671^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1221950167) 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, 293663 + ... + 297794.

Almost surely, 2^1221950162 is an apocalyptic number.

1221950162 is a deficient number, since it is larger than the sum of its proper divisors (612752554).

1221950162 is a wasteful number, since it uses less digits than its factorization.

1221950162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592492.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1221950162 is about 34956.4037337939. The cubic root of 1221950162 is about 1069.0987729750.

The spelling of 1221950162 in words is "one billion, two hundred twenty-one million, nine hundred fifty thousand, one hundred sixty-two".