1172542222840 has 32 divisors (see below), whose sum is σ = 2657200014000. Its totient is φ = 465642664704.

The previous prime is 1172542222837. The next prime is 1172542222871. The reversal of 1172542222840 is 482222452711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1172542222793 and 1172542222802.

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, 105438885 + ... + 105450004.

Almost surely, 2^{1172542222840} is an apocalyptic number.

1172542222840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172542222840 is an abundant number, since it is smaller than the sum of its proper divisors (1484657791160).

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

1172542222840 is a wasteful number, since it uses less digits than its factorization.

1172542222840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210889039 (or 210889035 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The spelling of 1172542222840 in words is "one trillion, one hundred seventy-two billion, five hundred forty-two million, two hundred twenty-two thousand, eight hundred forty".