222021121000202 has 4 divisors (see below), whose sum is σ = 333031681500306. Its totient is φ = 111010560500100.

The previous prime is 222021121000183. The next prime is 222021121000219. The reversal of 222021121000202 is 202000121120222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 186515861440561 + 35505259559641 = 13657081^2 + 5958629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505280250049 + ... + 55505280250052.

Almost surely, 2^{222021121000202} is an apocalyptic number.

222021121000202 is a deficient number, since it is larger than the sum of its proper divisors (111010560500104).

222021121000202 is a wasteful number, since it uses less digits than its factorization.

222021121000202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111010560500103.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222021121000202 its reverse (202000121120222), we get a palindrome (424021242120424).

The spelling of 222021121000202 in words is "two hundred twenty-two trillion, twenty-one billion, one hundred twenty-one million, two hundred two", and thus it is an aban number.