1027221972 has 48 divisors (see below), whose sum is σ = 2813301120. Its totient is φ = 285558912.

The previous prime is 1027221953. The next prime is 1027221997. The reversal of 1027221972 is 2791227201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162147 + ... + 168362.

It is an arithmetic number, because the mean of its divisors is an integer number (58610440).

Almost surely, 2^1027221972 is an apocalyptic number.

1027221972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1027221972 is an abundant number, since it is smaller than the sum of its proper divisors (1786079148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1027221972 is a wasteful number, since it uses less digits than its factorization.

1027221972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330560 (or 330558 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 1027221972 is about 32050.3037739114. The cubic root of 1027221972 is about 1008.9928764170.

The spelling of 1027221972 in words is "one billion, twenty-seven million, two hundred twenty-one thousand, nine hundred seventy-two".