1022022002021 has 4 divisors (see below), whose sum is σ = 1022197041600. Its totient is φ = 1021846962444.

The previous prime is 1022022002011. The next prime is 1022022002063. The reversal of 1022022002021 is 1202002202201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022022002021 - 2³⁴ = 1004842132837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022022001987 and 1022022002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022022002011) 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, 87511031 + ... + 87522708.

It is an arithmetic number, because the mean of its divisors is an integer number (255549260400).

Almost surely, 2^{1022022002021} is an apocalyptic number.

It is an amenable number.

1022022002021 is a deficient number, since it is larger than the sum of its proper divisors (175039579).

1022022002021 is an equidigital number, since it uses as much as digits as its factorization.

1022022002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175039578.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1022022002021 its reverse (1202002202201), we get a palindrome (2224024204222).

The spelling of 1022022002021 in words is "one trillion, twenty-two billion, twenty-two million, two thousand, twenty-one".