101202002222021 has 4 divisors (see below), whose sum is σ = 101202198497772. Its totient is φ = 101201805946272.

The previous prime is 101202002222011. The next prime is 101202002222023. The reversal of 101202002222021 is 120222200202101.

It is a happy number.

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 21604182880900 + 79597819341121 = 4648030^2 + 8921761^2 .

It is a cyclic number.

It is not a de Polignac number, because 101202002222021 - 2¹⁰ = 101202002220997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101202002222023) 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, 97362416 + ... + 98396361.

It is an arithmetic number, because the mean of its divisors is an integer number (25300549624443).

Almost surely, 2^{101202002222021} is an apocalyptic number.

It is an amenable number.

101202002222021 is a deficient number, since it is larger than the sum of its proper divisors (196275751).

101202002222021 is an equidigital number, since it uses as much as digits as its factorization.

101202002222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196275750.

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

Adding to 101202002222021 its reverse (120222200202101), we get a palindrome (221424202424122).

The spelling of 101202002222021 in words is "one hundred one trillion, two hundred two billion, two million, two hundred twenty-two thousand, twenty-one".