122206812 has 192 divisors, whose sum is σ = 386104320. Its totient is φ = 29159424.

The previous prime is 122206811. The next prime is 122206813. The reversal of 122206812 is 218602221.

It is an interprime number because it is at equal distance from previous prime (122206811) and next prime (122206813).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122206811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 538243 + ... + 538469.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^122206812 is an apocalyptic number.

122206812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122206812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193052160).

122206812 is an abundant number, since it is smaller than the sum of its proper divisors (263897508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122206812 is a wasteful number, since it uses less digits than its factorization.

122206812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 122206812 is about 11054.7189923580. The cubic root of 122206812 is about 496.2476596615.

The spelling of 122206812 in words is "one hundred twenty-two million, two hundred six thousand, eight hundred twelve".