102001002020122 has 4 divisors (see below), whose sum is σ = 153001503030186. Its totient is φ = 51000501010060.

The previous prime is 102001002020059. The next prime is 102001002020123. The reversal of 102001002020122 is 221020200100201.

It is a happy number.

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., 93365626182921 + 8635375837201 = 9662589^2 + 2938601^2 .

It is not an unprimeable number, because it can be changed into a prime (102001002020123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500250505029 + ... + 25500250505032.

Almost surely, 2^{102001002020122} is an apocalyptic number.

102001002020122 is a deficient number, since it is larger than the sum of its proper divisors (51000501010064).

102001002020122 is an equidigital number, since it uses as much as digits as its factorization.

102001002020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000501010063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102001002020122 its reverse (221020200100201), we get a palindrome (323021202120323).

The spelling of 102001002020122 in words is "one hundred two trillion, one billion, two million, twenty thousand, one hundred twenty-two".