102121211022202 has 8 divisors (see below), whose sum is σ = 153475831537812. Its totient is φ = 50962600509600.

The previous prime is 102121211022167. The next prime is 102121211022221. The reversal of 102121211022202 is 202220112121201.

It can be written as a sum of positive squares in 2 ways, for example, as 95779320729481 + 6341890292721 = 9786691^2 + 2518311^2 .

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

It is a super-2 number, since 2×102121211022202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102121211022202.

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, 49002499449 + ... + 49002501532.

Almost surely, 2^{102121211022202} is an apocalyptic number.

102121211022202 is a deficient number, since it is larger than the sum of its proper divisors (51354620515610).

102121211022202 is an equidigital number, since it uses as much as digits as its factorization.

102121211022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98005001504.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102121211022202 its reverse (202220112121201), we get a palindrome (304341323143403).

The spelling of 102121211022202 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred eleven million, twenty-two thousand, two hundred two".