101022212122021 has 4 divisors (see below), whose sum is σ = 101052704794252. Its totient is φ = 100991719449792.

The previous prime is 101022212122019. The next prime is 101022212122033. The reversal of 101022212122021 is 120221212220101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 80889985380996 + 20132226741025 = 8993886^2 + 4486895^2 .

It is a cyclic number.

It is not a de Polignac number, because 101022212122021 - 2¹ = 101022212122019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101022212122021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022212122621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15246331146 + ... + 15246337771.

It is an arithmetic number, because the mean of its divisors is an integer number (25263176198563).

Almost surely, 2^{101022212122021} is an apocalyptic number.

It is an amenable number.

101022212122021 is a deficient number, since it is larger than the sum of its proper divisors (30492672231).

101022212122021 is an equidigital number, since it uses as much as digits as its factorization.

101022212122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30492672230.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101022212122021 its reverse (120221212220101), we get a palindrome (221243424342122).

The spelling of 101022212122021 in words is "one hundred one trillion, twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, twenty-one".