101222002138 has 8 divisors (see below), whose sum is σ = 151838238420. Its totient is φ = 50609256000.

The previous prime is 101222002129. The next prime is 101222002139. The reversal of 101222002138 is 831200222101.

It can be written as a sum of positive squares in 2 ways, for example, as 94812878889 + 6409123249 = 307917^2 + 80057^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101222002139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798783 + ... + 916786.

Almost surely, 2^101222002138 is an apocalyptic number.

101222002138 is a deficient number, since it is larger than the sum of its proper divisors (50616236282).

101222002138 is a wasteful number, since it uses less digits than its factorization.

101222002138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745072.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 101222002138 its reverse (831200222101), we get a palindrome (932422224239).

The spelling of 101222002138 in words is "one hundred one billion, two hundred twenty-two million, two thousand, one hundred thirty-eight".