1012022010121 has 4 divisors (see below), whose sum is σ = 1012032220032. Its totient is φ = 1012011800212.

The previous prime is 1012022010091. The next prime is 1012022010133. The reversal of 1012022010121 is 1210102202101.

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 1012022010121 - 2¹¹ = 1012022008073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012022010521) 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, 4954801 + ... + 5155006.

It is an arithmetic number, because the mean of its divisors is an integer number (253008055008).

Almost surely, 2^{1012022010121} is an apocalyptic number.

It is an amenable number.

1012022010121 is a deficient number, since it is larger than the sum of its proper divisors (10209911).

1012022010121 is a wasteful number, since it uses less digits than its factorization.

1012022010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10209910.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012022010121 its reverse (1210102202101), we get a palindrome (2222124212222).

The spelling of 1012022010121 in words is "one trillion, twelve billion, twenty-two million, ten thousand, one hundred twenty-one".