1101211055121 has 32 divisors (see below), whose sum is σ = 1537101987840. Its totient is φ = 699940384704.

The previous prime is 1101211055117. The next prime is 1101211055129. The reversal of 1101211055121 is 1215501121011.

It is not a de Polignac number, because 1101211055121 - 2² = 1101211055117 is a prime.

It is a super-2 number, since 2×1101211055121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1101211055129) 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, 44094180 + ... + 44119146.

It is an arithmetic number, because the mean of its divisors is an integer number (48034437120).

Almost surely, 2^{1101211055121} is an apocalyptic number.

It is an amenable number.

1101211055121 is a deficient number, since it is larger than the sum of its proper divisors (435890932719).

1101211055121 is a wasteful number, since it uses less digits than its factorization.

1101211055121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27045.

The product of its (nonzero) digits is 100, while the sum is 21.

Adding to 1101211055121 its reverse (1215501121011), we get a palindrome (2316712176132).

The spelling of 1101211055121 in words is "one trillion, one hundred one billion, two hundred eleven million, fifty-five thousand, one hundred twenty-one".