222121100102 has 8 divisors (see below), whose sum is σ = 363470891112. Its totient is φ = 100964136400.

The previous prime is 222121100081. The next prime is 222121100119. The reversal of 222121100102 is 201001121222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×222121100102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5048206799 + ... + 5048206842.

It is an arithmetic number, because the mean of its divisors is an integer number (45433861389).

Almost surely, 2^222121100102 is an apocalyptic number.

222121100102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222121100102 is a deficient number, since it is larger than the sum of its proper divisors (141349791010).

222121100102 is a wasteful number, since it uses less digits than its factorization.

222121100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096413654.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222121100102 its reverse (201001121222), we get a palindrome (423122221324).

It can be divided in two parts, 222121 and 100102, that added together give a palindrome (322223).

The spelling of 222121100102 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred thousand, one hundred two".