102012022001 has 4 divisors (see below), whose sum is σ = 102047730852. Its totient is φ = 101976313152.

The previous prime is 102012021971. The next prime is 102012022003. The reversal of 102012022001 is 100220210201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100220210201 = 277 ⋅361805813.

It can be written as a sum of positive squares in 2 ways, for example, as 90796152976 + 11215869025 = 301324^2 + 105905^2 .

It is a cyclic number.

It is not a de Polignac number, because 102012022001 - 2¹⁰ = 102012020977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102012022003) 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, 17850140 + ... + 17855853.

It is an arithmetic number, because the mean of its divisors is an integer number (25511932713).

Almost surely, 2^102012022001 is an apocalyptic number.

It is an amenable number.

102012022001 is a deficient number, since it is larger than the sum of its proper divisors (35708851).

102012022001 is an equidigital number, since it uses as much as digits as its factorization.

102012022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35708850.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102012022001 its reverse (100220210201), we get a palindrome (202232232202).

The spelling of 102012022001 in words is "one hundred two billion, twelve million, twenty-two thousand, one".