210100021221122 has 4 divisors (see below), whose sum is σ = 315150031831686. Its totient is φ = 105050010610560.

The previous prime is 210100021221067. The next prime is 210100021221161. The reversal of 210100021221122 is 221122120001012.

210100021221122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 114518485171561 + 95581536049561 = 10701331^2 + 9776581^2 .

It is a super-3 number, since 3×210100021221122³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210100021221122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52525005305279 + ... + 52525005305282.

Almost surely, 2^{210100021221122} is an apocalyptic number.

210100021221122 is a deficient number, since it is larger than the sum of its proper divisors (105050010610564).

210100021221122 is a wasteful number, since it uses less digits than its factorization.

210100021221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105050010610563.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210100021221122 its reverse (221122120001012), we get a palindrome (431222141222134).

The spelling of 210100021221122 in words is "two hundred ten trillion, one hundred billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".