2091101101002 has 48 divisors (see below), whose sum is σ = 4857714449280. Its totient is φ = 666727878168.

The previous prime is 2091101100929. The next prime is 2091101101003. The reversal of 2091101101002 is 2001011011902.

It is a happy number.

It is a super-2 number, since 2×2091101101002² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2091101101003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36572658 + ... + 36629789.

It is an arithmetic number, because the mean of its divisors is an integer number (101202384360).

Almost surely, 2^{2091101101002} is an apocalyptic number.

2091101101002 is an abundant number, since it is smaller than the sum of its proper divisors (2766613348278).

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

2091101101002 is a wasteful number, since it uses less digits than its factorization.

2091101101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73202504 (or 73202475 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 2091101101002 its reverse (2001011011902), we get a palindrome (4092112112904).

The spelling of 2091101101002 in words is "two trillion, ninety-one billion, one hundred one million, one hundred one thousand, two".