1022201111212 has 12 divisors (see below), whose sum is σ = 1788911512920. Its totient is φ = 511083536096.

The previous prime is 1022201111189. The next prime is 1022201111213. The reversal of 1022201111212 is 2121111022201.

It is a super-2 number, since 2×1022201111212² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022201111213) 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, 4119262 + ... + 4360357.

It is an arithmetic number, because the mean of its divisors is an integer number (149075959410).

Almost surely, 2^{1022201111212} is an apocalyptic number.

It is an amenable number.

1022201111212 is a deficient number, since it is larger than the sum of its proper divisors (766710401708).

1022201111212 is a wasteful number, since it uses less digits than its factorization.

1022201111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8509760 (or 8509758 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1022201111212 its reverse (2121111022201), we get a palindrome (3143312133413).

The spelling of 1022201111212 in words is "one trillion, twenty-two billion, two hundred one million, one hundred eleven thousand, two hundred twelve".