1022221532 has 6 divisors (see below), whose sum is σ = 1788887688. Its totient is φ = 511110764.

The previous prime is 1022221531. The next prime is 1022221579. The reversal of 1022221532 is 2351222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127777688 + ... + 127777695.

It is an arithmetic number, because the mean of its divisors is an integer number (298147948).

Almost surely, 2^1022221532 is an apocalyptic number.

It is an amenable number.

1022221532 is a deficient number, since it is larger than the sum of its proper divisors (766666156).

1022221532 is a wasteful number, since it uses less digits than its factorization.

1022221532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255555387 (or 255555385 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1022221532 is about 31972.1993613201. The cubic root of 1022221532 is about 1007.3529785241.

Adding to 1022221532 its reverse (2351222201), we get a palindrome (3373443733).

The spelling of 1022221532 in words is "one billion, twenty-two million, two hundred twenty-one thousand, five hundred thirty-two".