100121202220022 has 4 divisors (see below), whose sum is σ = 150181803330036. Its totient is φ = 50060601110010.

The previous prime is 100121202220003. The next prime is 100121202220051. The reversal of 100121202220022 is 220022202121001.

It is a happy number.

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

It is a super-2 number, since 2×100121202220022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25030300555004 + ... + 25030300555007.

It is an arithmetic number, because the mean of its divisors is an integer number (37545450832509).

Almost surely, 2^{100121202220022} is an apocalyptic number.

100121202220022 is a deficient number, since it is larger than the sum of its proper divisors (50060601110014).

100121202220022 is an equidigital number, since it uses as much as digits as its factorization.

100121202220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50060601110013.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 100121202220022 its reverse (220022202121001), we get a palindrome (320143404341023).

The spelling of 100121202220022 in words is "one hundred trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty thousand, twenty-two".