2221021010 has 32 divisors (see below), whose sum is σ = 4359882240. Its totient is φ = 809684928.

The previous prime is 2221021003. The next prime is 2221021027. The reversal of 2221021010 is 101201222.

It is a happy number.

It is a super-2 number, since 2×2221021010² = 9865868653722840200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2221020982 and 2221021000.

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, 97862 + ... + 118401.

It is an arithmetic number, because the mean of its divisors is an integer number (136246320).

Almost surely, 2^2221021010 is an apocalyptic number.

2221021010 is a deficient number, since it is larger than the sum of its proper divisors (2138861230).

2221021010 is a wasteful number, since it uses less digits than its factorization.

2221021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216362.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2221021010 is about 47127.7095772752. The cubic root of 2221021010 is about 1304.7207086679.

Adding to 2221021010 its reverse (101201222), we get a palindrome (2322222232).

The spelling of 2221021010 in words is "two billion, two hundred twenty-one million, twenty-one thousand, ten".