210221220022 has 16 divisors (see below), whose sum is σ = 362103537600. Its totient is φ = 90525884040.

The previous prime is 210221219977. The next prime is 210221220047. The reversal of 210221220022 is 220022122012.

It is a super-2 number, since 2×210221220022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210221219978 and 210221220005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251460372 + ... + 251461207.

It is an arithmetic number, because the mean of its divisors is an integer number (22631471100).

Almost surely, 2^210221220022 is an apocalyptic number.

210221220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210221220022 is a deficient number, since it is larger than the sum of its proper divisors (151882317578).

210221220022 is a wasteful number, since it uses less digits than its factorization.

210221220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502921611.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 210221220022 its reverse (220022122012), we get a palindrome (430243342034).

The spelling of 210221220022 in words is "two hundred ten billion, two hundred twenty-one million, two hundred twenty thousand, twenty-two".