1012022221021 has 8 divisors (see below), whose sum is σ = 1156611274560. Its totient is φ = 867436780128.

The previous prime is 1012022220991. The next prime is 1012022221039. The reversal of 1012022221021 is 1201222202101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1012022221021 - 2⁷ = 1012022220893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012022220986 and 1012022221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012022221121) 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, 273616 + ... + 1448761.

It is an arithmetic number, because the mean of its divisors is an integer number (144576409320).

Almost surely, 2^{1012022221021} is an apocalyptic number.

It is an amenable number.

1012022221021 is a deficient number, since it is larger than the sum of its proper divisors (144589053539).

1012022221021 is an equidigital number, since it uses as much as digits as its factorization.

1012022221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806323.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1012022221021 its reverse (1201222202101), we get a palindrome (2213244423122).

The spelling of 1012022221021 in words is "one trillion, twelve billion, twenty-two million, two hundred twenty-one thousand, twenty-one".