122212354773540 has 192 divisors, whose sum is σ = 348543609007104. Its totient is φ = 31988899717632.

The previous prime is 122212354773539. The next prime is 122212354773559. The reversal of 122212354773540 is 45377453212221.

It is a self number, because there is not a number n which added to its sum of digits gives 122212354773540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2068666482 + ... + 2068725558.

It is an arithmetic number, because the mean of its divisors is an integer number (1815331296912).

Almost surely, 2^{122212354773540} is an apocalyptic number.

122212354773540 is a gapful number since it is divisible by the number (10) 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 122212354773540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174271804503552).

122212354773540 is an abundant number, since it is smaller than the sum of its proper divisors (226331254233564).

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

122212354773540 is a wasteful number, since it uses less digits than its factorization.

122212354773540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60986 (or 60984 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 122212354773540 in words is "one hundred twenty-two trillion, two hundred twelve billion, three hundred fifty-four million, seven hundred seventy-three thousand, five hundred forty".