102022212111121 has 4 divisors (see below), whose sum is σ = 102032914125492. Its totient is φ = 102011510096752.

The previous prime is 102022212111031. The next prime is 102022212111143. The reversal of 102022212111121 is 121111212220201.

It is a happy number.

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 41264692537600 + 60757519573521 = 6423760^2 + 7794711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102022212111121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102022212111151) 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, 5350992886 + ... + 5351011951.

It is an arithmetic number, because the mean of its divisors is an integer number (25508228531373).

Almost surely, 2^{102022212111121} is an apocalyptic number.

It is an amenable number.

102022212111121 is a deficient number, since it is larger than the sum of its proper divisors (10702014371).

102022212111121 is an equidigital number, since it uses as much as digits as its factorization.

102022212111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702014370.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102022212111121 its reverse (121111212220201), we get a palindrome (223133424331322).

The spelling of 102022212111121 in words is "one hundred two trillion, twenty-two billion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-one".