201222219954 has 64 divisors (see below), whose sum is σ = 466561492992. Its totient is φ = 56664451200.

The previous prime is 201222219953. The next prime is 201222220013. The reversal of 201222219954 is 459912222102.

It is not an unprimeable number, because it can be changed into a prime (201222219953) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11564449 + ... + 11581835.

It is an arithmetic number, because the mean of its divisors is an integer number (7290023328).

Almost surely, 2^201222219954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222219954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233280746496).

201222219954 is an abundant number, since it is smaller than the sum of its proper divisors (265339273038).

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

201222219954 is a wasteful number, since it uses less digits than its factorization.

201222219954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21351.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 201222219954 in words is "two hundred one billion, two hundred twenty-two million, two hundred nineteen thousand, nine hundred fifty-four".