1002122022021 has 8 divisors (see below), whose sum is σ = 1340917724544. Its totient is φ = 665703833760.

The previous prime is 1002122021981. The next prime is 1002122022043. The reversal of 1002122022021 is 1202202212001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002122022021 - 2³⁴ = 984942152837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002122022091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594377581 + ... + 594379266.

It is an arithmetic number, because the mean of its divisors is an integer number (167614715568).

Almost surely, 2^{1002122022021} is an apocalyptic number.

It is an amenable number.

1002122022021 is a deficient number, since it is larger than the sum of its proper divisors (338795702523).

1002122022021 is a wasteful number, since it uses less digits than its factorization.

1002122022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188757131.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1002122022021 its reverse (1202202212001), we get a palindrome (2204324234022).

The spelling of 1002122022021 in words is "one trillion, two billion, one hundred twenty-two million, twenty-two thousand, twenty-one".