10022011012121 has 4 divisors (see below), whose sum is σ = 10026157481652. Its totient is φ = 10017864542592.

The previous prime is 10022011012031. The next prime is 10022011012271. The reversal of 10022011012121 is 12121011022001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8916703627225 + 1105307384896 = 2986085^2 + 1051336^2 .

It is a cyclic number.

It is not a de Polignac number, because 10022011012121 - 2¹⁸ = 10022010749977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10022011012096 and 10022011012105.

It is not an unprimeable number, because it can be changed into a prime (10022011012721) 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, 2073231140 + ... + 2073235973.

It is an arithmetic number, because the mean of its divisors is an integer number (2506539370413).

Almost surely, 2^{10022011012121} is an apocalyptic number.

It is an amenable number.

10022011012121 is a deficient number, since it is larger than the sum of its proper divisors (4146469531).

10022011012121 is an equidigital number, since it uses as much as digits as its factorization.

10022011012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146469530.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10022011012121 its reverse (12121011022001), we get a palindrome (22143022034122).

The spelling of 10022011012121 in words is "ten trillion, twenty-two billion, eleven million, twelve thousand, one hundred twenty-one".