2101011201121 has 16 divisors (see below), whose sum is σ = 2402684504064. Its totient is φ = 1799720423424.

The previous prime is 2101011201097. The next prime is 2101011201131. The reversal of 2101011201121 is 1211021101012.

It is a happy number.

It is not a de Polignac number, because 2101011201121 - 2⁹ = 2101011200609 is a prime.

It is a super-2 number, since 2×2101011201121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101011201131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148547776 + ... + 148561918.

It is an arithmetic number, because the mean of its divisors is an integer number (150167781504).

Almost surely, 2^{2101011201121} is an apocalyptic number.

It is an amenable number.

2101011201121 is a deficient number, since it is larger than the sum of its proper divisors (301673302943).

2101011201121 is a wasteful number, since it uses less digits than its factorization.

2101011201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26160.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2101011201121 its reverse (1211021101012), we get a palindrome (3312032302133).

The spelling of 2101011201121 in words is "two trillion, one hundred one billion, eleven million, two hundred one thousand, one hundred twenty-one".