1021002202231 has 8 divisors (see below), whose sum is σ = 1162247566464. Its totient is φ = 887828001720.

The previous prime is 1021002202219. The next prime is 1021002202237. The reversal of 1021002202231 is 1322022001201.

It is a happy number.

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

It is not a de Polignac number, because 1021002202231 - 2⁹ = 1021002201719 is a prime.

It is a super-2 number, since 2×1021002202231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021002202237) 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, 2017790661 + ... + 2017791166.

It is an arithmetic number, because the mean of its divisors is an integer number (145280945808).

Almost surely, 2^{1021002202231} is an apocalyptic number.

1021002202231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1021002202231 is a deficient number, since it is larger than the sum of its proper divisors (141245364233).

1021002202231 is a wasteful number, since it uses less digits than its factorization.

1021002202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035581861.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1021002202231 its reverse (1322022001201), we get a palindrome (2343024203432).

The spelling of 1021002202231 in words is "one trillion, twenty-one billion, two million, two hundred two thousand, two hundred thirty-one".