1211011102 has 8 divisors (see below), whose sum is σ = 2076019056. Its totient is φ = 519004752.

The previous prime is 1211011097. The next prime is 1211011121. The reversal of 1211011102 is 2011101121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43250383 + ... + 43250410.

It is an arithmetic number, because the mean of its divisors is an integer number (259502382).

Almost surely, 2^1211011102 is an apocalyptic number.

1211011102 is a deficient number, since it is larger than the sum of its proper divisors (865007954).

1211011102 is an equidigital number, since it uses as much as digits as its factorization.

1211011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86500802.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1211011102 is about 34799.5847963736. The cubic root of 1211011102 is about 1065.8989675059.

Adding to 1211011102 its reverse (2011101121), we get a palindrome (3222112223).

The spelling of 1211011102 in words is "one billion, two hundred eleven million, eleven thousand, one hundred two".