1211002110101 has 32 divisors (see below), whose sum is σ = 1420134363648. Its totient is φ = 1011202133760.

The previous prime is 1211002110089. The next prime is 1211002110119. The reversal of 1211002110101 is 1010112001121.

It is not a de Polignac number, because 1211002110101 - 2³⁰ = 1209928368277 is a prime.

It is a super-2 number, since 2×1211002110101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211002119101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36746291 + ... + 36779231.

It is an arithmetic number, because the mean of its divisors is an integer number (44379198864).

Almost surely, 2^{1211002110101} is an apocalyptic number.

It is an amenable number.

1211002110101 is a deficient number, since it is larger than the sum of its proper divisors (209132253547).

1211002110101 is a wasteful number, since it uses less digits than its factorization.

1211002110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33701.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1211002110101 its reverse (1010112001121), we get a palindrome (2221114111222).

The spelling of 1211002110101 in words is "one trillion, two hundred eleven billion, two million, one hundred ten thousand, one hundred one".