1121211102 has 32 divisors (see below), whose sum is σ = 2487749760. Its totient is φ = 334001120.

The previous prime is 1121211101. The next prime is 1121211127. The reversal of 1121211102 is 2011121211.

It is a super-2 number, since 2×1121211102² = 2514228670496108808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121211101) 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, 140073 + ... + 147860.

It is an arithmetic number, because the mean of its divisors is an integer number (77742180).

Almost surely, 2^1121211102 is an apocalyptic number.

1121211102 is an abundant number, since it is smaller than the sum of its proper divisors (1366538658).

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

1121211102 is a wasteful number, since it uses less digits than its factorization.

1121211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288008.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1121211102 is about 33484.4904694696. The cubic root of 1121211102 is about 1038.8730093363.

Adding to 1121211102 its reverse (2011121211), we get a palindrome (3132332313).

The spelling of 1121211102 in words is "one billion, one hundred twenty-one million, two hundred eleven thousand, one hundred two".