102121222011 has 8 divisors (see below), whose sum is σ = 136249312080. Its totient is φ = 68036973312.

The previous prime is 102121221953. The next prime is 102121222043. The reversal of 102121222011 is 110222121201.

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

It is not a de Polignac number, because 102121222011 - 2⁶ = 102121221947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121222061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954906 + ... + 10964223.

It is an arithmetic number, because the mean of its divisors is an integer number (17031164010).

Almost surely, 2^102121222011 is an apocalyptic number.

102121222011 is a deficient number, since it is larger than the sum of its proper divisors (34128090069).

102121222011 is a wasteful number, since it uses less digits than its factorization.

102121222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21920685.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102121222011 its reverse (110222121201), we get a palindrome (212343343212).

The spelling of 102121222011 in words is "one hundred two billion, one hundred twenty-one million, two hundred twenty-two thousand, eleven".