121101101210 has 16 divisors (see below), whose sum is σ = 227459460096. Its totient is φ = 46334334288.

The previous prime is 121101101071. The next prime is 121101101227. The reversal of 121101101210 is 12101101121.

It is a junction number, because it is equal to n+sod(n) for n = 121101101191 and 121101101200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263263034 + ... + 263263493.

It is an arithmetic number, because the mean of its divisors is an integer number (14216216256).

Almost surely, 2^121101101210 is an apocalyptic number.

121101101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121101101210 is a deficient number, since it is larger than the sum of its proper divisors (106358358886).

121101101210 is a wasteful number, since it uses less digits than its factorization.

121101101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526526557.

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

Adding to 121101101210 its reverse (12101101121), we get a palindrome (133202202331).

The spelling of 121101101210 in words is "one hundred twenty-one billion, one hundred one million, one hundred one thousand, two hundred ten".