101213422154 has 16 divisors (see below), whose sum is σ = 164998596840. Its totient is φ = 46285318080.

The previous prime is 101213422139. The next prime is 101213422157. The reversal of 101213422154 is 451224312101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 96463042225 + 4750379929 = 310585^2 + 68923^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101213422157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17854157 + ... + 17859824.

Almost surely, 2^101213422154 is an apocalyptic number.

101213422154 is a deficient number, since it is larger than the sum of its proper divisors (63785174686).

101213422154 is a wasteful number, since it uses less digits than its factorization.

101213422154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35714105.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 101213422154 its reverse (451224312101), we get a palindrome (552437734255).

The spelling of 101213422154 in words is "one hundred one billion, two hundred thirteen million, four hundred twenty-two thousand, one hundred fifty-four".