102120011111002 has 8 divisors (see below), whose sum is σ = 153180415876212. Its totient is φ = 51059872485600.

The previous prime is 102120011110973. The next prime is 102120011111087. The reversal of 102120011111002 is 200111110021201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101806869023721 + 313142087281 = 10089939^2 + 559591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102120011111002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65572899 + ... + 67112182.

Almost surely, 2^{102120011111002} is an apocalyptic number.

102120011111002 is a deficient number, since it is larger than the sum of its proper divisors (51060404765210).

102120011111002 is a wasteful number, since it uses less digits than its factorization.

102120011111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133069904.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102120011111002 its reverse (200111110021201), we get a palindrome (302231121132203).

The spelling of 102120011111002 in words is "one hundred two trillion, one hundred twenty billion, eleven million, one hundred eleven thousand, two".