49112221111221 has 16 divisors (see below), whose sum is σ = 69342966022464. Its totient is φ = 30811926561024.

The previous prime is 49112221111139. The next prime is 49112221111307. The reversal of 49112221111221 is 12211112221194.

It is not a de Polignac number, because 49112221111221 - 2¹⁸ = 49112220849077 is a prime.

It is a super-2 number, since 2×49112221111221² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49112221111021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55568575 + ... + 56445468.

It is an arithmetic number, because the mean of its divisors is an integer number (4333935376404).

Almost surely, 2^{49112221111221} is an apocalyptic number.

It is an amenable number.

49112221111221 is a deficient number, since it is larger than the sum of its proper divisors (20230744911243).

49112221111221 is a wasteful number, since it uses less digits than its factorization.

49112221111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112022660.

The product of its digits is 1152, while the sum is 30.

The spelling of 49112221111221 in words is "forty-nine trillion, one hundred twelve billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty-one".