2221251022 has 4 divisors (see below), whose sum is σ = 3331876536. Its totient is φ = 1110625510.

The previous prime is 2221251001. The next prime is 2221251023. The reversal of 2221251022 is 2201521222.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2221251022² = 9867912205472088968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221251023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555312754 + ... + 555312757.

It is an arithmetic number, because the mean of its divisors is an integer number (832969134).

Almost surely, 2^2221251022 is an apocalyptic number.

2221251022 is a deficient number, since it is larger than the sum of its proper divisors (1110625514).

2221251022 is a wasteful number, since it uses less digits than its factorization.

2221251022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110625513.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2221251022 is about 47130.1498194097. The cubic root of 2221251022 is about 1304.7657466721.

Adding to 2221251022 its reverse (2201521222), we get a palindrome (4422772244).

The spelling of 2221251022 in words is "two billion, two hundred twenty-one million, two hundred fifty-one thousand, twenty-two".