101421402122 has 4 divisors (see below), whose sum is σ = 152132103186. Its totient is φ = 50710701060.

The previous prime is 101421402119. The next prime is 101421402139. The reversal of 101421402122 is 221204124101.

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., 67241157481 + 34180244641 = 259309^2 + 184879^2 .

It is a super-2 number, since 2×101421402122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101421402094 and 101421402103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25355350529 + ... + 25355350532.

Almost surely, 2^101421402122 is an apocalyptic number.

101421402122 is a deficient number, since it is larger than the sum of its proper divisors (50710701064).

101421402122 is an equidigital number, since it uses as much as digits as its factorization.

101421402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50710701063.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 101421402122 its reverse (221204124101), we get a palindrome (322625526223).

The spelling of 101421402122 in words is "one hundred one billion, four hundred twenty-one million, four hundred two thousand, one hundred twenty-two".