121013013211 has 6 divisors (see below), whose sum is σ = 126503207180. Its totient is φ = 115751577348.

The previous prime is 121013013131. The next prime is 121013013241. The reversal of 121013013211 is 112310310121.

It is a happy number.

It is not a de Polignac number, because 121013013211 - 2¹³ = 121013005019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121013013241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114378501 + ... + 114379558.

Almost surely, 2^121013013211 is an apocalyptic number.

121013013211 is a deficient number, since it is larger than the sum of its proper divisors (5490193969).

121013013211 is an equidigital number, since it uses as much as digits as its factorization.

121013013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228758105 (or 228758082 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121013013211 its reverse (112310310121), we get a palindrome (233323323332).

The spelling of 121013013211 in words is "one hundred twenty-one billion, thirteen million, thirteen thousand, two hundred eleven".