222011121021012 has 36 divisors (see below), whose sum is σ = 566439589156896. Its totient is φ = 73312083575760.

The previous prime is 222011121020987. The next prime is 222011121021013. The reversal of 222011121021012 is 210120121110222.

222011121021012 is a `hidden beast` number, since 2 + 220 + 1 + 11 + 210 + 210 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011121021013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28817639064 + ... + 28817646767.

It is an arithmetic number, because the mean of its divisors is an integer number (15734433032136).

Almost surely, 2^{222011121021012} is an apocalyptic number.

It is an amenable number.

222011121021012 is an abundant number, since it is smaller than the sum of its proper divisors (344428468135884).

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

222011121021012 is a wasteful number, since it uses less digits than its factorization.

222011121021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57635285948 (or 57635285943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222011121021012 its reverse (210120121110222), we get a palindrome (432131242131234).

The spelling of 222011121021012 in words is "two hundred twenty-two trillion, eleven billion, one hundred twenty-one million, twenty-one thousand, twelve".