91101121220102 has 16 divisors (see below), whose sum is σ = 156237965264160. Its totient is φ = 39027184015488.

The previous prime is 91101121220093. The next prime is 91101121220113. The reversal of 91101121220102 is 20102212110119.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346102477 + ... + 1346170152.

It is an arithmetic number, because the mean of its divisors is an integer number (9764872829010).

Almost surely, 2^{91101121220102} is an apocalyptic number.

91101121220102 is a deficient number, since it is larger than the sum of its proper divisors (65136844044058).

91101121220102 is a wasteful number, since it uses less digits than its factorization.

91101121220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692275055.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 91101121220102 in words is "ninety-one trillion, one hundred one billion, one hundred twenty-one million, two hundred twenty thousand, one hundred two".