102021211110002 has 4 divisors (see below), whose sum is σ = 153031816665006. Its totient is φ = 51010605555000.

The previous prime is 102021211109959. The next prime is 102021211110041. The reversal of 102021211110002 is 200011112120201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57150893552041 + 44870317557961 = 7559821^2 + 6698531^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505302777499 + ... + 25505302777502.

Almost surely, 2^{102021211110002} is an apocalyptic number.

102021211110002 is a deficient number, since it is larger than the sum of its proper divisors (51010605555004).

102021211110002 is an equidigital number, since it uses as much as digits as its factorization.

102021211110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51010605555003.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102021211110002 its reverse (200011112120201), we get a palindrome (302032323230203).

The spelling of 102021211110002 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred ten thousand, two".