102001212122 has 16 divisors (see below), whose sum is σ = 158120606952. Its totient is φ = 49316359680.

The previous prime is 102001212121. The next prime is 102001212139. The reversal of 102001212122 is 221212100201.

102001212122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14839868761 + 87161343361 = 121819^2 + 295231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102001212097 and 102001212106.

It is not an unprimeable number, because it can be changed into a prime (102001212121) 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, 5494793 + ... + 5513324.

Almost surely, 2^102001212122 is an apocalyptic number.

102001212122 is a deficient number, since it is larger than the sum of its proper divisors (56119394830).

102001212122 is a wasteful number, since it uses less digits than its factorization.

102001212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11008273.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102001212122 its reverse (221212100201), we get a palindrome (323213312323).

The spelling of 102001212122 in words is "one hundred two billion, one million, two hundred twelve thousand, one hundred twenty-two".