102001212221202 has 48 divisors (see below), whose sum is σ = 252575008882560. Its totient is φ = 29143136727936.

The previous prime is 102001212221201. The next prime is 102001212221203. The reversal of 102001212221202 is 202122212100201.

It is a happy number.

102001212221202 is a `hidden beast` number, since 1 + 0 + 200 + 121 + 222 + 120 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (102001212221201) and next prime (102001212221203).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102001212221201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88000074 + ... + 89151642.

It is an arithmetic number, because the mean of its divisors is an integer number (5261979351720).

Almost surely, 2^{102001212221202} is an apocalyptic number.

102001212221202 is an abundant number, since it is smaller than the sum of its proper divisors (150573796661358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102001212221202 is a wasteful number, since it uses less digits than its factorization.

102001212221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854567 (or 1854564 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102001212221202 its reverse (202122212100201), we get a palindrome (304123424321403).

The spelling of 102001212221202 in words is "one hundred two trillion, one billion, two hundred twelve million, two hundred twenty-one thousand, two hundred two".