11202121112212 has 12 divisors (see below), whose sum is σ = 19605851920116. Its totient is φ = 5600449135040.

The previous prime is 11202121112209. The next prime is 11202121112233. The reversal of 11202121112212 is 21221112120211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8415371657476 + 2786749454736 = 2900926^2 + 1669356^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11202121112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152814043 + ... + 152887330.

It is an arithmetic number, because the mean of its divisors is an integer number (1633820993343).

Almost surely, 2^{11202121112212} is an apocalyptic number.

It is an amenable number.

11202121112212 is a deficient number, since it is larger than the sum of its proper divisors (8403730807904).

11202121112212 is a wasteful number, since it uses less digits than its factorization.

11202121112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305710538 (or 305710536 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11202121112212 its reverse (21221112120211), we get a palindrome (32423233232423).

The spelling of 11202121112212 in words is "eleven trillion, two hundred two billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twelve".