1210121100222 has 16 divisors (see below), whose sum is σ = 2420255346192. Its totient is φ = 403371509120.

The previous prime is 1210121100191. The next prime is 1210121100247. The reversal of 1210121100222 is 2220011210121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974308 + ... + 1835624.

It is an arithmetic number, because the mean of its divisors is an integer number (151265959137).

Almost surely, 2^{1210121100222} is an apocalyptic number.

1210121100222 is an abundant number, since it is smaller than the sum of its proper divisors (1210134245970).

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

1210121100222 is a wasteful number, since it uses less digits than its factorization.

1210121100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095483.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1210121100222 its reverse (2220011210121), we get a palindrome (3430132310343).

The spelling of 1210121100222 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-two".