210221001122002 has 16 divisors (see below), whose sum is σ = 345995087480280. Its totient is φ = 95194415601792.

The previous prime is 210221001121961. The next prime is 210221001122029. The reversal of 210221001122002 is 200221100122012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 148203816862201 + 62017184259801 = 12173899^2 + 7875099^2 .

It is a super-2 number, since 2×210221001122002² (a number of 29 digits) contains 22 as substring.

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, 76277575227 + ... + 76277577982.

Almost surely, 2^{210221001122002} is an apocalyptic number.

210221001122002 is a deficient number, since it is larger than the sum of its proper divisors (135774086358278).

210221001122002 is a wasteful number, since it uses less digits than its factorization.

210221001122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152555153277.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210221001122002 its reverse (200221100122012), we get a palindrome (410442101244014).

The spelling of 210221001122002 in words is "two hundred ten trillion, two hundred twenty-one billion, one million, one hundred twenty-two thousand, two".