22211221020101 has 4 divisors (see below), whose sum is σ = 22212933936672. Its totient is φ = 22209508103532.

The previous prime is 22211221020061. The next prime is 22211221020113. The reversal of 22211221020101 is 10102012211222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22211221020101 - 2²⁶ = 22211153911237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22211221020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211221020601) 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, 856438835 + ... + 856464768.

It is an arithmetic number, because the mean of its divisors is an integer number (5553233484168).

Almost surely, 2^{22211221020101} is an apocalyptic number.

It is an amenable number.

22211221020101 is a deficient number, since it is larger than the sum of its proper divisors (1712916571).

22211221020101 is a wasteful number, since it uses less digits than its factorization.

22211221020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712916570.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22211221020101 its reverse (10102012211222), we get a palindrome (32313233231323).

The spelling of 22211221020101 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, twenty thousand, one hundred one".