102001121211 has 16 divisors (see below), whose sum is σ = 154815932160. Its totient is φ = 59131084320.

The previous prime is 102001121179. The next prime is 102001121239. The reversal of 102001121211 is 112121100201.

It is not a de Polignac number, because 102001121211 - 2⁵ = 102001121179 is a prime.

It is a super-2 number, since 2×102001121211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102001121251) 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, 67193656 + ... + 67195173.

It is an arithmetic number, because the mean of its divisors is an integer number (9675995760).

Almost surely, 2^102001121211 is an apocalyptic number.

102001121211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102001121211 is a deficient number, since it is larger than the sum of its proper divisors (52814810949).

102001121211 is a wasteful number, since it uses less digits than its factorization.

102001121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134388866.

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

Adding to 102001121211 its reverse (112121100201), we get a palindrome (214122221412).

The spelling of 102001121211 in words is "one hundred two billion, one million, one hundred twenty-one thousand, two hundred eleven".