102012222111002 has 24 divisors (see below), whose sum is σ = 188471560421844. Its totient is φ = 41147787069312.

The previous prime is 102012222111001. The next prime is 102012222111017. The reversal of 102012222111002 is 200111222210201.

It can be written as a sum of positive squares in 2 ways, for example, as 89169323588401 + 12842898522601 = 9442951^2 + 3583699^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (102012222111001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30615911333 + ... + 30615914664.

Almost surely, 2^{102012222111002} is an apocalyptic number.

102012222111002 is a deficient number, since it is larger than the sum of its proper divisors (86459338310842).

102012222111002 is a wasteful number, since it uses less digits than its factorization.

102012222111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61231826030 (or 61231826023 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102012222111002 its reverse (200111222210201), we get a palindrome (302123444321203).

The spelling of 102012222111002 in words is "one hundred two trillion, twelve billion, two hundred twenty-two million, one hundred eleven thousand, two".