121001210100222 has 16 divisors (see below), whose sum is σ = 242876075150352. Its totient is φ = 40188127541760.

The previous prime is 121001210100107. The next prime is 121001210100341. The reversal of 121001210100222 is 222001012100121.

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, 36402287779 + ... + 36402291102.

It is an arithmetic number, because the mean of its divisors is an integer number (15179754696897).

Almost surely, 2^{121001210100222} is an apocalyptic number.

121001210100222 is an abundant number, since it is smaller than the sum of its proper divisors (121874865050130).

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

121001210100222 is a wasteful number, since it uses less digits than its factorization.

121001210100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72804579163.

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

Adding to 121001210100222 its reverse (222001012100121), we get a palindrome (343002222200343).

The spelling of 121001210100222 in words is "one hundred twenty-one trillion, one billion, two hundred ten million, one hundred thousand, two hundred twenty-two".