102102211020002 has 4 divisors (see below), whose sum is σ = 153153316530006. Its totient is φ = 51051105510000.

The previous prime is 102102211019959. The next prime is 102102211020023. The reversal of 102102211020002 is 200020112201201.

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., 101064035469721 + 1038175550281 = 10053061^2 + 1018909^2 .

It is a super-2 number, since 2×102102211020002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525552754999 + ... + 25525552755002.

Almost surely, 2^{102102211020002} is an apocalyptic number.

102102211020002 is a deficient number, since it is larger than the sum of its proper divisors (51051105510004).

102102211020002 is an equidigital number, since it uses as much as digits as its factorization.

102102211020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51051105510003.

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

Adding to 102102211020002 its reverse (200020112201201), we get a palindrome (302122323221203).

The spelling of 102102211020002 in words is "one hundred two trillion, one hundred two billion, two hundred eleven million, twenty thousand, two".