102120221211101 has 4 divisors (see below), whose sum is σ = 102121167516192. Its totient is φ = 102119274906012.

The previous prime is 102120221211097. The next prime is 102120221211109. The reversal of 102120221211101 is 101112122021201.

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 102120221211101 - 2² = 102120221211097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102120221211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120221211109) 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, 472990655 + ... + 473206508.

It is an arithmetic number, because the mean of its divisors is an integer number (25530291879048).

Almost surely, 2^{102120221211101} is an apocalyptic number.

It is an amenable number.

102120221211101 is a deficient number, since it is larger than the sum of its proper divisors (946305091).

102120221211101 is an equidigital number, since it uses as much as digits as its factorization.

102120221211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946305090.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102120221211101 its reverse (101112122021201), we get a palindrome (203232343232302).

The spelling of 102120221211101 in words is "one hundred two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred one".