1211011001102 has 32 divisors (see below), whose sum is σ = 2149760502720. Its totient is φ = 500605217280.

The previous prime is 1211011001099. The next prime is 1211011001107. The reversal of 1211011001102 is 2011001101121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211011001107) 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, 1091099 + ... + 1900662.

It is an arithmetic number, because the mean of its divisors is an integer number (67180015710).

Almost surely, 2^{1211011001102} is an apocalyptic number.

1211011001102 is a deficient number, since it is larger than the sum of its proper divisors (938749501618).

1211011001102 is a wasteful number, since it uses less digits than its factorization.

1211011001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992796.

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

Adding to 1211011001102 its reverse (2011001101121), we get a palindrome (3222012102223).

The spelling of 1211011001102 in words is "one trillion, two hundred eleven billion, eleven million, one thousand, one hundred two".