102211211220011 has 4 divisors (see below), whose sum is σ = 103166456184792. Its totient is φ = 101255966255232.

The previous prime is 102211211219969. The next prime is 102211211220023. The reversal of 102211211220011 is 110022112112201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102211211220011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102211211220311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477622482230 + ... + 477622482443.

It is an arithmetic number, because the mean of its divisors is an integer number (25791614046198).

Almost surely, 2^{102211211220011} is an apocalyptic number.

102211211220011 is a deficient number, since it is larger than the sum of its proper divisors (955244964781).

102211211220011 is an equidigital number, since it uses as much as digits as its factorization.

102211211220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955244964780.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102211211220011 its reverse (110022112112201), we get a palindrome (212233323332212).

The spelling of 102211211220011 in words is "one hundred two trillion, two hundred eleven billion, two hundred eleven million, two hundred twenty thousand, eleven".