101001021102 has 48 divisors (see below), whose sum is σ = 222085693440. Its totient is φ = 33168831696.

The previous prime is 101001021097. The next prime is 101001021127. The reversal of 101001021102 is 201120100101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 581683 + ... + 735089.

It is an arithmetic number, because the mean of its divisors is an integer number (4626785280).

Almost surely, 2^101001021102 is an apocalyptic number.

101001021102 is an abundant number, since it is smaller than the sum of its proper divisors (121084672338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101001021102 is a wasteful number, since it uses less digits than its factorization.

101001021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153957 (or 153954 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101001021102 its reverse (201120100101), we get a palindrome (302121121203).

The spelling of 101001021102 in words is "one hundred one billion, one million, twenty-one thousand, one hundred two".